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Radiological Imaging Results in HIV-Infected Patients in Mogadishu-Somalia: A Four-Year Retrospective Review
Abstract
Somalia, which is one of the countries that has been trying to integrate with the rest of the world in terms of many socio-economic parameters, including the field of health in recent years, still faces some important health problems. One of these problems is the difficulties encountered in the early diagnosis and treatment of patients with human immunodeficiency virus (HIV) infection, primarily due to social discrimination and limited treatment access. In this study, it was aimed to examine the findings detected in the radiological imaging examinations requested during the first examination in patients who were diagnosed with HIV for the first time by detecting HIV seropositivity in tests performed for different clinical reasons, and to determine the pathologies caused by advanced disease in patients who did not receive treatment. The study includes 235 patients who were diagnosed for the first time out of 269 patients with HIV confirmed by two different serological diagnostic tests during a previous comprehensive seroepidemiological study, and 14 patients with a suspicious test result for HIV infection but the presence of infection cannot be definitively proven in the absence of molecular diagnostic methods. In retrospective examinations, it was determined that 117 (49.8%) and 13 (92.9%) patients in both groups had radiological imaging (magnetic resonance imaging-MRI, computed tomography-CT, ultrasonography, and chest X-ray), respectively. While 16 of 117 HIV-infected patients had non-specific radiological findings and 53 had normal radiological findings, at least one radiological imaging of 48 patients revealed abnormal radiological imaging findings that may be associated with HIV infection. In these 48 patients, pneumonia findings in thorax CT and chest X-ray examinations, and encephalitis-related findings in patients with central nervous system involvement were the most common anomalies. In addition of these, other abnormal radiological findings included mass lesions compatible with neoplasia, lesions compatible with metastasis, lymphadenopathies, hepatosplenomegaly, and lesions indicating spleen involvement. The presence of similar findings (lesions compatible with pneumonia, encephalitis, and neoplasia) in 9 of 13 patients whose HIV infection could not be confirmed indicates that radiological tests can make significant contributions to clinical evaluations in the management of patients with suspicious laboratory results. The data we present from a region where significant obstacles are encountered in the diagnosis and follow-up of HIV infections due to the fear of discrimination (stigma) of the patients and the lack of molecular tests draw attention to the fact that many patients have advanced lesions when they are diagnosed, and this situation will have negative effects in the patient management and treatment process.
... Radiologic imaging (chest X-ray and CT) of AFB smear-positive patients was evaluated by a radiologist with five years of experience. Chest radiographs were performed in the posteroanterior projection and standing with a floor-mounted digital X-ray machine [13] were found as ++++, 140 (68%) were found as +++, 10 (4.9%) were found as ++, and 7 (3.4%) ...
Tuberculosis (TB) is an important public health problem worldwide and in Somalia and is a significant cause of death and disease burden due to untreated advanced cases. Despite its prevalence in the country, limited awareness of TB (including healthcare professionals) is one of the most important reasons for underdiagnosis and one of the most important obstacles to achieving the targets of fighting TB in Somalia. In this study, it was aimed to document the radiological signs of pulmonary TB in 206 patients with radiological imaging results among the patients (n=220) who applied to a tertiary hospital serving in Mogadishu and were found to have a positive sputum smear result. The study includes retrospective evaluations of X-ray radiographs of 155 patients and computed tomography (CT) images of 51 patients. Of the 206 patients included in the study, 73.3% (n=151) were male and 26.7% (n=55) were female, and the average age of the study group was 38.5±18.99 years (age range was 3-90 and median was 32, patients were 16 and over, except for a three-year-old child). In patients who are all HIV (human immunodeficiency virus) negative, the most common radiological findings are; nodular opacities were determined as (76.2%), patchy infiltration (62.1%), cavitation (46.1%) and consolidation (45.1%). The majority of the patients were newly diagnosed TB patients, and 14.8% (23/155) of the patients for whom data was available were patients with a history of TB. However, radiological findings showed that the majority of patients had postprimary TB infections. According to accessible retrospective records, 89.3% of the patients had cough, 83.3% had sputum production, and 83.2% had chest pain. Considering the distribution of the lesions, 50.3% of the patients with X-ray results and 70.6% of the patients with CT results had bilateral involvement. The upper lung zones were most frequently affected in both X-ray (81.3%) and CT imaging (78.4% and 74.5% for right and left, respectively). In this study, advanced disease findings and permanent damage were observed in a significant portion of the patients, and extra pulmonary spread was also observed in some patients. All these data show that tuberculosis patients in Somalia are diagnosed late and that there are significant disruptions in the treatment process.
... As an example, some studies cover the following topics; HIV infection and its complications [8,9], HCV prevalence and genotype distribution [7,10], prevalence of intestinal parasitic infections [11], change in the frequency of malaria over the years [12], tuberculosis prevalence and complications [13][14][15], incidence and distribution of cancer cases [16], antibiotic resistance rates [17,18], frequency of thyroid diseases [19], causes of blindness [20], and prevalence of various other organ-specific diseases and infections [21][22][23]. ...
The epidemiology of hepatitis B virus (HBV) and hepatitis C virus (HCV) has been discussed in detail from different aspects around the world. Current epidemiological data has critical importance in the planning and carrying out of public health policies for the prevention of transmission and spread of these infections, and the treatment of chronic infections, and to reduce the burden and mortality associated with complications such as cirrhosis and liver cancer by national health authorities and international health institutions, especially the World Health Organization. Elimination of a social health problem is possible by first raising awareness, then determining the dimensions of the problem, and planning and implementing interventions for a solution. Somalia was in the position of a region where access to diagnosis and treatment for many life-threatening diseases was difficult, aside from the monitoring of public health criteria due to the unstable situations that has continued for more than 40 years. Until recently, basic health parameters and epidemiological predictions in Somalia were monitored through estimates based on data from neighboring countries or on data obtained from small groups from Somalia immigrants settled different parts of the world. However, this situation is changing rapidly. A tertiary education and research hospital established in the capital, Mogadishu, with the coordination of the Türkiye and Somalia governments, and which has become the largest health center in the country today; contributes to understanding the extent of the serious health problems faced by the country by pioneering specialized training and scientific studies, in addition to providing health care. Electronic health records have been kept regularly since 2015 in this hospital, where hundreds of thousands of patients receive treatment or undergo health checks every year and it has been the source of numerous retrospective epidemiological studies some of which have exceeded 100 thousand cases, in different age groups and sub-populations. These studies include human immunodeficiency virus (HIV) prevalence and complications, HCV prevalence and genotype distribution, prevalence and epidemiology of parasitic infections, incidence of tuberculosis and related complications, cancer incidence and distribution, causes of blindness, thyroid diseases, antibiotic resistance profiles, and the epidemiology of various organ-specific diseases. Dozens of studies using the hospital records were included in the scientific literature between 2020 and 2023. In this study, a four-year period between November 2015 and November 2019, HBV serological test results of more than 100,000 different patients are presented. HBsAg and anti-HBs seropositivity for all age groups was found to be 8.1% (9,405/115,946) and 32.7% (25,988/79,410), respectively. When the anti-HCV test results of HBsAg positive patients were examined, the rate of HCV co-infections was found to be 0.9% (82/9,405). HBsAg and anti-HBs seropositivity were significantly higher in males than females (p<0.001). HBV, HCV, and co-infection incidence tended to decrease. Conversely, vaccination rates (especially in children under one year of age) tended to increase. While the comprehensive data presented in this study provide us with important and new information about the prevalence and co-infection rates of viral hepatitis in the country, many topics including HBV genotypes, hepatitis D frequency, access to treatment rates, complication rates, and HBV vaccination rates are still waiting to be researched in Somalia. In the region where it is not possible to carry out field studies, epidemiological data provided by electronic health records have become a country's window to the world.
Introduction
Tuberculosis (TB) is a fatal disease caused by Mycobacterium tuberculosis (M.TB) with over eight million annual mortality reported worldwide attributed to the disease's direct or indirect effects. Among the most severe form of M. TB is an infection of the Central nervous system (CNS-TB). This infection is characterized by meningitis, tuberculoma, and tuberculous brain abscess. Tuberculomas are the most common variety of intracranial parenchymal tuberculosis. They occur because of conglomeration and conjugation of tubercular microgranulomas, which tend to occur at the grey-white matter junction due to arrest of the hematogenous disseminating microbes caused by a decrease in the caliber of vessels in that region. Intracranial tuberculoma shows central hypointensity compared to grey matter, seeing this centrally on T2W images is helpful, as it is not seen in most other ring-enhancing lesions.
Objectives
The purpose of this study was to evaluate the findings of the magnetic resonance imaging (MRI) scan of patients with intracranial tuberculoma using retrospective hospital records.
Methodology
We conducted a retrospective data analysis of 73 patients with an age range of 3–70 years between 2018 and 2021 who were diagnosed with intracranial tuberculoma using MRI features at the Radiology Department, Somali-Turkey Recep Tayyip Erdogan Hospital. All the patients' MRI were evaluated, including conventional and contrast sequence and as well as MR diffusion.
Results
This study revealed that most tuberculoma patients were female with 43 (58.9%) and 30 (41.1%) male. According to age group, the majority of patients 30 (41.1%) were 18–30 years of age. Based on the distribution of the conglomerates’ tubercles, 39 (53.4%) were located in the supratentorial region, while 24 (32.9%) were found in both the supra-tentorial and infra-tentorial regions, with 10 (13.7%) residing in the infratentorial region. Interestingly, this study also discovered that the majority of the tuberculoma patients 43 (58.9%) had multifocal lesions, with 30 (41.1%) having single lesions. Also, associated abnormalities were detected in 28 (38.4%) of the patients with meningitis, while 7 (9.6%) had both hydrocephalus and meningitis, 2 (2.7%) had hydrocephalus, and one patient had cerebral infarction.
Conclusion
The outcome of this investigation shows MRI as a suitable diagnostic tool for the diagnosis of intracranial tuberculoma and associated abnormalities in geographic areas where tuberculosis is endemic.
In this chapter, we discuss the classification of viruses, the effects of viruses on biological balance of our planet, the importance of detecting viruses that have the potential to be used as biological weapons or that carry epidemic or pandemic risks, and the characteristics of such viruses. While discoveries about viruses, which carry the largest genetic information code in nature, have continued unabated for more than a century, viruses are constantly affecting the global biological balance. The main characteristics that make viruses important in this balance include epidemics and mass deaths, the risks of being used as biological weapons, and the continued lack of an effective vaccine or specific treatment for many viruses. However, viruses also offer incredible opportunities for the scientific world, due to biotechnological innovations that have gained momentum in recent years. The detection of viruses is of urgent importance for the early detection of pandemics and epidemics. In this chapter, we discuss the classification of viruses, the effects of viruses on biological balance of our planet, the importance of detecting viruses that have the potential to be used as biological weapons or that carry epidemic or pandemic risks, and the characteristics of such viruses.
Introduction
The development of an effective vaccine to protect against HIV is a longstanding global health need complicated by challenges inherent to HIV biology and to the execution of vaccine efficacy testing in the context of evolving biomedical prevention interventions. This review describes lessons learnt from previous efficacy trials, highlights unanswered questions, and surveys new approaches in vaccine development addressing these gaps.
Methods
We conducted a targeted peer-reviewed literature search of articles and conference abstracts from 1989 through 2021 for HIV vaccine studies and clinical trials. The US National Library of Medicine's Clinical Trials database was accessed to further identify clinical trials involving HIV vaccines. The content of the review was also informed by the authors’ own experience and engagement with collaborators in HIV vaccine research.
Discussion
The HIV vaccine field has successfully developed multiple vaccine platforms through advanced clinical studies; however, the modest efficacy signal of the RV144 Thai trial remains the only demonstration of HIV vaccine protection in humans. Current vaccine strategies include prime-boost strategies to improve elicitation of immune correlates derived from RV144, combination mosaic antigens, novel viral vectors, antigens designed to elicit broadly neutralizing antibody, new nucleic acid platforms and potent adjuvants to enhance immunogenicity across multiple classes of emerging vaccine candidates.
Conclusions
HIV vaccine developers have applied lessons learnt from previous successes and failures to innovative vaccine design approaches. These strategies have yielded novel mosaic antigen constructs now in efficacy testing, produced a diverse pipeline of early-stage immunogens and novel adjuvants, and advanced the field towards a globally effective HIV vaccine.
Nearly 40 years have passed since the initial cases of infection with the human mmunodeficiency virus (HIV) were identified as a new disease entity and the cause of acquired immunodeficiency disease (AIDS). This virus, unlike any other, is capable of causing severe suppression of our adaptive immune defense mechanisms by directly infecting and destroying helper T cells leading to increased susceptibility to a wide variety of microbial pathogens, especially those considered to be intracellular or opportunistic. After T cells are infected, HIV reproduces itself via a somewhat unique mechanism involving various metabolic steps, which includes the use of a reverse transcriptase enzyme that enables the viral RNA to produce copies of its complementary DNA. Subsequent physiologic steps lead to the production of new virus progeny and the eventual death of the invaded T cell. Fortunately, both serologic and molecular tests (such as PCR) can be used to confirm the diagnosis of an HIV infection. In the wake of the current COVID-19 pandemic, it appears that people living with HIV/AIDS are equally or slightly more susceptible to the etiologic agent, SARS-CoV-2, than the general population having intact immune systems, but they may have more serious outcomes. Limited clinical trials have also shown that the currently available COVID-19 vaccines are both safe and effective in affording protection to HIV/AIDS patients. In this review, we further explore the unique dynamic of HIV/AIDS in the context of the worldwide COVID-19 pandemic and the implementation of vaccines as a protective measure against COVID-19, as well as what immune parameters and safeguards should be monitored in this immunocompromised group following vaccination.
With the advent of antiretroviral therapy (ART), the prognosis of people infected with human immunodeficiency virus (HIV) has improved, and the frequency of HIV-related central nervous system (CNS) diseases has decreased. Nevertheless, mortality from HIV-related CNS diseases, including those associated with ART (e.g., immune reconstitution inflammatory syndrome) remains significant. Magnetic resonance imaging (MRI) can improve the outlook for people with HIV through early diagnosis and prompt treatment. For example, HIV encephalopathy shows a diffuse bilateral pattern, whereas progressive multifocal leukoencephalopathy, HIV-related primary CNS lymphoma, and CNS toxoplasmosis show focal patterns on MRI. Among the other diseases caused by opportunistic infections, CNS cryptococcosis and CNS tuberculosis have extremely poor prognoses unless diagnosed early. Immune reconstitution inflammatory syndrome shows distinct MRI findings from the offending opportunistic infections. Although distinguishing between HIV-related CNS diseases based on imaging alone is difficult, in this review, we discuss how pattern recognition approaches can contribute to their early differentiation.
Alveolar macrophages (AMs) are critical for defense against airborne pathogens and AM dysfunction is thought to contribute to the increased burden of pulmonary infections observed in individuals living with HIV-1 (HIV). While HIV nucleic acids have been detected in AMs early in infection, circulating HIV during acute and chronic infection is usually CCR5 T cell-tropic (T-tropic) and enters macrophages inefficiently in vitro. The mechanism by which T-tropic viruses infect AMs remains unknown. We collected AMs by bronchoscopy performed in HIV-infected, antiretroviral therapy (ART)-naive and uninfected subjects. We found that viral constructs made with primary HIV envelope sequences isolated from both AMs and plasma were T-tropic and inefficiently infected macrophages. However, these isolates productively infected macrophages when co-cultured with HIV-infected CD4+ T cells. In addition, we provide evidence that T-tropic HIV is transmitted from infected CD4+ T cells to the AM cytosol. We conclude that AM-derived HIV isolates are T-tropic and can enter macrophages through contact with an infected CD4+ T cell, which results in productive infection of AMs. CD4+ T cell-dependent entry of HIV into AMs helps explain the presence of HIV in AMs despite inefficient cell-free infection, and may contribute to AM dysfunction in people living with HIV.
Background
Healthcare workers are at risk of acquiring human immunodeficiency virus (HIV) infections, because of occupational exposure to blood and other body fluids. Post-exposure prophylaxis (PEP) is a short-term antiretroviral treatment used to reduce the likelihood of viral infection after exposure to the blood or body fluids of an infected person. Timely PEP after exposure to high-risk body fluids in the working area can reduce the rate of transmission of HIV significantly.
Objective
To assess the knowledge, attitude, practice, and associated factors towards PEP for HIV/AIDS among health professionals in health centers in the Harari region, Eastern Ethiopia.
Methodology
A retrospective cross-sectional study was conducted using structured questionnaires from March to April 2019. The collected data were analyzed by using SPSS version 20, and the result was presented in the form of tables and figures.
Results
Of 217 participants, 51.6% were male and 75.2% were in the age group of 20–30 years. One hundred thirty (59.9%) respondents had a year of service less than 5 years, and nearly half (45.2%) of the participants had a Diploma. The study revealed that 35.02% of the participants had inadequate knowledge of PEP. About 32.26% had an unfavorable attitude towards PEP. Of 124 (57.1%) exposed respondents, 54 (68.4%) tried to get PEP service and 49 (90.7%) started to use PEP. Twenty-six (48.1%) respondents started to use PEP within 6 to 24 hours after exposure. Sex, qualification, and attitude status were found to have a significant association with knowledge regarding PEP.
Conclusion
The findings of this study indicated that a significant number of health professionals had poor knowledge and poor attitude towards PEP. Occupational exposures were common among health professionals. However, the practice of using PEP was low among health professionals. As a result, health facilities should strengthen and integrate routine PEP services by providing training to all health professionals.
Understanding the earliest immune responses following HIV infection is critical to inform future vaccines and therapeutics. Here, we review recent prospective human studies in at-risk populations that have provided insight into immune responses during acute infection, including additional relevant data from non-human primate (NHP) studies. We discuss the timing, nature, and function of the diverse immune responses induced, the onset of immune dysfunction, and the effects of early anti-retroviral therapy administration. Treatment at onset of viremia mitigates peripheral T and B cell dysfunction, limits seroconversion, and enhances cellular antiviral immunity despite persistence of infection in lymphoid tissues. We highlight pertinent areas for future investigation, and how application of high-throughput technologies, alongside targeted NHP studies, may elucidate immune response features to target in novel preventions and cures. Shalek and colleagues review recent findings on the nature and function of immune responses during acute HIV infection, including insights into the onset of immune dysfunction. They discuss the effects of anti-retroviral therapy on these early responses and argue for the importance of understanding acute HIV infection for the development of improved preventive and therapeutic strategies.
Current antiretroviral therapy (ART) effectively suppresses Human Immunodeficiency Virus type 1 (HIV-1) in infected individuals. However, even long term ART does not eradicate HIV-1 infected cells and the virus persists in cellular reservoirs. Beside memory CD4⁺ T cells, cells of the myeloid lineage, especially macrophages, are believed to be an important sanctuary for HIV-1. Monocytes and macrophages are key players in the innate immune response to pathogens and are recruited to sites of infection and inflammation. Due to their long life span and ability to reside in virtually every tissue, macrophages have been proposed to play a critical role in the establishment and persistence of the HIV-1 reservoir. Current HIV-1 cure strategies mainly focus on the concept of “shock and kill” to purge the viral reservoir. This approach aims to reactivate viral protein production in latently infected cells, which subsequently are eliminated as a consequence of viral replication, or recognized and killed by the immune system. Macrophage susceptibility to HIV-1 infection is dependent on the local microenvironment, suggesting that molecular pathways directing differentiation and polarization are involved. Current latency reversing agents (LRA) are mainly designed to reactivate the HIV-1 provirus in CD4+ T cells, while their ability to abolish viral latency in macrophages is largely unknown. Moreover, the resistance of macrophages to HIV-1 mediated kill and the presence of infected macrophages in immune privileged regions including the central nervous system (CNS), may pose a barrier to elimination of infected cells by current “shock and kill” strategies. This review focusses on the role of monocytes/macrophages in HIV-1 persistence. We will discuss mechanisms of viral latency and persistence in monocytes/macrophages. Furthermore, the role of these cells in HIV-1 tissue distribution and pathogenesis will be discussed.
The chemokine system mediates acute inflammation by driving leukocyte migration to damaged or infected tissues. However, elevated expression of chemokines and their receptors can contribute to chronic inflammation and malignancy. Thus, great effort has been taken to target these molecules. The first hint of the druggability of the chemokine system was derived from the role of chemokine receptors in HIV infection. CCR5 and CXCR4 function as essential co-receptors for HIV entry, with the former accounting for most new HIV infections worldwide. Not by chance, an anti-CCR5 compound, maraviroc, was the first FDA-approved chemokine receptor-targeting drug. CCR5, by directing leukocytes to sites of inflammation and regulating their activation, also represents an important player in the inflammatory response. This function is shared with CCR2 and its selective ligand CCL2, which constitute the primary chemokine axis driving the recruitment of monocytes/macrophages to inflammatory sites. Both receptors are indeed involved in the pathogenesis of several immune-mediated diseases, and dual CCR5/CCR2 targeting is emerging as a more efficacious strategy than targeting either receptor alone in the treatment of complex human disorders. In this review, we focus on the distinctive and complementary contributions of CCR5 and CCR2/CCL2 in HIV infection, multiple sclerosis, liver fibrosis and associated hepatocellular carcinoma. The emerging therapeutic approaches based on the inhibition of these chemokine axes are highlighted.
The risk of developing malignancy is higher in patients with human immunodeficiency virus (HIV) infection than in non-HIV-infected patients. Several factors including immunosuppression, viral coinfection, and high-risk lifestyle choices lead to higher rates of cancer in the HIV-infected population. A subset of HIV-related malignancies are considered to be acquired immunodeficiency syndrome (AIDS)-defining malignancies, as their presence confirms the diagnosis of AIDS in an HIV-infected patient. The introduction of highly active antiretroviral therapy (HAART) has led to a significant drop in the rate of AIDS-defining malignancies, including Kaposi sarcoma, non-Hodgkin lymphoma, and invasive cervical carcinoma. However, non-AIDS-defining malignancies (eg, Hodgkin lymphoma, lung cancer, hepatocellular carcinoma, and head and neck cancers) now account for an increasing number of cancer cases diagnosed in HIV-infected patients. Although the number has decreased, AIDS-defining malignancies account for 15%-19% of all deaths in HIV-infected patients in the post-HAART era. Most HIV-related malignancies in HIV-infected patients manifest at an earlier age with a more aggressive course than that of non-HIV-related malignancies. Understanding common HIV-related malignancies and their specific imaging features is crucial for making an accurate and early diagnosis, which impacts management. Owing to the weakened immune system of HIV-infected patients, other entities such as various infections, particularly opportunistic infections, are prevalent in these patients. These processes can have confounding clinical and imaging manifestations that mimic malignancy. This article reviews the most common AIDS-defining and non-AIDS-defining malignancies, the role of imaging in their diagnosis, and the imaging mimics of malignancies in HIV-infected patients. ©RSNA, 2018.
HIV-1 infection cannot be cured due to the presence of the latent reservoir (LR). Novel cure or treatment strategies, such as “shock and kill” or therapeutic vaccination, aim to reduce or eradicate the LR. Cure strategies utilise robust DNA quantification assays to measure the change in the LR in low copy scenarios. No standard assay exists, which impedes the reliable comparison of results from different therapy and vaccine trials and HIV-1 total DNA quantification methods have not been previously compared. The HIV-1 long terminal repeat (LTR) has been shown to be the best target for DNA quantification. We have analysed two HIV-1 quantification assays, both able to differentiate between the variant HIV-1 DNA forms via the use of pre-amplification and primers targeting LTR. We identify a strong correlation (r=0.9759, P<0.0001) between assays which is conserved in low copy samples (r=0.8220, P<0.0001) indicating that these assays may be used interchangeably. The RvS assay performed significantly (P=0.0021) better than the CV assay when quantifying HIV-1 total DNA in patient CD4+ T lymphocytes. Sequence analysis demonstrated that viral diversity can limit DNA quantification, however in silico analysis of the primers indicated that within the target region nucleotide miss-matches appear infrequently. Further in silico analysis using up to-date sequence information led to the improvement of primers and enabled us to establish a more broadly specific assay with significantly higher HIV-1 DNA quantification capacity in patient samples (p=0.0057, n=17).
HIV is capable of invading the brain soon after seroconversion. This ultimately can lead to deficits in multiple cognitive domains commonly referred to as HIV-associated neurocognitive disorders (HAND). Clinical diagnosis of such deficits requires detailed neuropsychological assessment but clinical signs may be difficult to detect during asymptomatic injury of the central nervous system (CNS). Therefore neuroimaging biomarkers are of particular interest in HAND. In this study, we constructed brain connectivity profiles of 40 subjects (20 HIV positive subjects and 20 age-matched seronegative controls) using two different methods: a non-linear mutual connectivity analysis approach and a conventional method based on Pearson's correlation. These profiles were then summarized using graph-theoretic methods characterizing their topological network properties. Standard clinical and laboratory assessments were performed and a battery of neuropsychological (NP) tests was administered for all participating subjects. Based on NP testing, 14 of the seropositive subjects exhibited mild neurologic impairment. Subsequently, we analyzed associations between the network derived measures and neuropsychological assessment scores as well as common clinical laboratory plasma markers (CD4 cell count, HIV RNA) after adjusting for age and gender. Mutual connectivity analysis derived graph-theoretic measures, Modularity and Small Worldness, were significantly (p
Background:
Human Immunodeficiency Virus (HIV) continues to take a heavy toll on the lives of many people, with the worst impact on health and wellbeing for the affected individuals in fragile states. The HIV situation in Somalia is not clearly known and experiences of the people living with HIV in this war-torn region are often unexpressed. This pilot qualitative study sought to explore the experiences of people diagnosed with HIV living in Mogadishu, and their resilience in access to care and social support.
Methods:
Participants were recruited through drug dispensers at the HIV clinic in Banadir Hospital. Face-to-face in-depth interviews were conducted in Somali in May 2013 among patients who were receiving antiretroviral therapy (ART) from the HIV clinic in Mogadishu. These were tape-recorded, transcribed, and translated for content analysis.
Results:
Three women and four men who were living with HIV shared the following narratives. Their perception was that they had either got HIV from their spouses or through health care contamination. They were very knowledgeable about the realities of HIV, how the medication works, nutritional requirements, and drug adherence. They were always willing to go an extra mile to secure a good life for themselves. However, the external HIV stigma impacted their access to care. They faced challenges in their homes and at work which compelled them to seek support from non-governmental organizations (NGOs) or close family members. This stigma often affected their disclosure to the wider community due to the uncertainty of the repercussions, leading to a life of extreme loneliness and financial difficulties. The participants' coping mechanisms included living together and starting their own NGO for support with very strong optimism about their prognosis.
Conclusions:
The people diagnosed with HIV living in Mogadishu are highly knowledgeable about HIV transmission, the realities of living with a diagnosed HIV infection, and the efficacy of HIV treatment. Our small sample suggests adequate access to ART through NGOs. However, widespread HIV stigma limits HIV status disclosure to families and communities, which creates a risk of self-isolation and ill health. Still, affected individuals have developed resilient mechanisms for managing the risks. They strive to remain employed for economic security, adhere to HIV treatment, engage in support groups, and maintain the utmost optimism about their prognosis.
Acquired immunodeficiency syndrome (AIDS) of humans is caused by two lentiviruses, human immunodeficiency viruses types 1 and 2 (HIV-1 and HIV-2). Here, we describe the origins and evolution of these viruses, and the circumstances that led to the AIDS pandemic. Both HIVs are the result of multiple cross-species transmissions of simian immunodeficiency viruses (SIVs) naturally infecting African primates. Most of these transfers resulted in viruses that spread in humans to only a limited extent. However, one transmission event, involving SIVcpz from chimpanzees in southeastern Cameroon, gave rise to HIV-1 group M-the principal cause of the AIDS pandemic. We discuss how host restriction factors have shaped the emergence of new SIV zoonoses by imposing adaptive hurdles to cross-species transmission and/or secondary spread. We also show that AIDS has likely afflicted chimpanzees long before the emergence of HIV. Tracing the genetic changes that occurred as SIVs crossed from monkeys to apes and from apes to humans provides a new framework to examine the requirements of successful host switches and to gauge future zoonotic risk.
Introduction
This study aimed to present the radiological findings of injuries in victims as a result of a suicide bombing in Mogadishu, Somalia.
Methods
Of the 82 injured cases admitted to the emergency department within the first six hours after the explosion, those who were radiologically evaluated were included in this retrospective and descriptive study. To analyze and identify the distribution of primary, secondary, and tertiary injuries, they were classified according to the body areas as head-neck, thorax, abdominopelvic, extremity, and vertebra.
Results
The mean age (mean ± SD) of 63 patients included in the study was 28.6 ± 10.2 years. Twenty-four (38.1%) of the injured patients were female and 39 (61.9%) were male. Secondary blast injury was the most common type of injury in the study group with a rate of 39/63 (62%). The total number of bomb fragments was 235, of which 113 (47.8%) were seen in the head and neck region, followed by 86 (36.5%) in the extremities. There were 10 patients (15.9%) with lung injury and 13 (20.6%) with tympanic membrane perforation due to the primary blast mechanism.
Conclusion
Radiological imaging plays an important role in identifying specific findings and patterns of explosive injuries. Therefore, we consider that patients with stable hemodynamics should be radiologically examined for a fast and accurate diagnosis or treatment.
OBJECTIVE. The purpose of this article is to review important imaging and clinical features to help elucidate causes of lymphadenopathy in patients with HIV infection. CONCLUSION. HIV lymphadenopathy has various causes generally categorized as inflammatory or reactive, such as immune reconstitution syndrome; infectious, such as tuberculous and nontuberculous mycobacterial infections and HIV infection itself; and neoplastic, such as lymphoma, Kaposi sarcoma, and Castleman disease. It is important to consider patients' demographic characteristics, clinical presentations, CD4 lymphocyte counts, and radiologic features to identify likely causes of lymphadenopathy.
Background: HIV stigma and the resultant fear of being identified as HIV-positive can compromise the effectiveness of HIV programs by undermining early diagnosis and antiretroviral
treatment initiation and adherence of people living with HIV (PLHIV). In the wake of the longstanding conflict in the country, little is known about the life experiences of PLHIV in Somalia.
Methods: A qualitative study using unstructured interviews was conducted in Somalia from
September to December 2017. A convenience sampling approach was used to recruit 13 participants, including 10 persons who live with HIV and three senior officials who work for the
HIV program at the Ministry of Health. Data were analyzed using a thematic analysis.
Results: Our findings show that PLHIV are alienated and prefer to isolate themselves due to
widespread stigma subjected to them by their family members, society, employers, and health
providers, which continue to undermine the scale-up of testing and treatment of PLHIV in
Somalia. Consequently, they are reluctant to seek voluntary diagnosis and treatment of HIV.
They often come to know about their status when their partners are found HIV positive, they
are tested for other clinical purposes, or when an individual’s health deteriorates, and all other
means fail to work in improving his/her situation. The study also pointed out a shortage of
facilities that provide HIV diagnosis, counseling and treatment in Somalia.
Conclusion: Addressing stigma and discrimination subjected to PLHIV are critical to a successful HIV response in Somalia. To successfully address stigma, HIV programs need evidence
on effective interventions at individual, community, and societal levels in order to strategically
incorporate stigma and discrimination reduction into national HIV programs.
Keywords: HIV stigma, PLHIV, discrimination, Somalia
HIV-1 is transmitted by sexual contact across mucosal surfaces, by maternal-infant exposure, and by percutaneous inoculation. For reasons that are still incompletely understood, CCR5-tropic viruses (R5 viruses) are preferentially transmitted by all routes. Transmission is followed by an orderly appearance of viral and host markers of infection in the blood plasma. In the acute phase of infection, HIV-1 replicates exponentially and diversifies randomly, allowing for an unambiguous molecular identification of transmitted/founder virus genomes and a precise characterization of the population bottleneck to virus transmission. Sexual transmission of HIV-1 most often results in productive clinical infection arising from a single virus, highlighting the extreme bottleneck and inherent inefficiency in virus transmission. It remains to be determined if HIV-1 transmission is largely a stochastic process whereby any reasonably fit R5 virus can be transmitted or if there are features of transmitted/founder viruses that facilitate their transmission in a biologically meaningful way. Human tissue explant models of HIV-1 infection and animal models of SIV/SHIV/HIV-1 transmission, coupled with new challenge virus strains that more closely reflect transmitted/founder viruses, have the potential to elucidate fundamental mechanisms in HIV-1 transmission relevant to vaccine design and other prevention strategies.
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