Billy Nyambalo

Ministry of Health Malawi · Public Health Insititute of Malawi Research Division

Vaccination is one of the essential measures in reducing transmission, morbidity, and mortality rates of a disease. However, the COVID-19 vaccination is facing hesitancy across the globe, Malawi included. A population-based cross-sectional study was conducted in Malawi to document knowledge, attitudes, and practices on COVID-19 vaccination. The stu...

Introduction Pneumonia is one of the major causes of childhood mortality worldwide. Most of these deaths are readily preventable or treatable with proven cost effective interventions. The aim of this study is to investigate the assessment and management of childhood pneumonia in primary care in Malawi.Methods Semi-structured interviews were used to...

As the fight against the COVID-19 pandemic continues, reports indicate that the global vaccination rate is still far below the target. Understanding the levels of reinfection may help refocus and inform policymakers on vaccination. This retrospective study in Malawi included individuals and patients who tested for COVID-19 infections via reverse tr...

Objective The aim of our study was to determine the extent of exposure of the student population to SARS-CoV-2 and its associated factors. 166 students were enrolled in our study representing a 100% response rate. Results The SARS-CoV-2 antibody seroprevalence in the sampled student population was 78%. Gender of the respondents was a significant m...

Objective The aim of this study was to characterize Covid-19 cases and explore risk factors associated with mortality among hypertensive patients with COVID-19 country-wide. Methods We used a retrospective case control study design to provide a detailed account of cases and explore risk factors associated with mortality among hypertensive patients...

We estimated the seroprevalence of anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies in residents of African countries and explored its associated factors. We searched PubMed, EMBASE, PsycINFO, AMED, CINAHL, DOAJ and Google Scholar databases for peer reviewed articles and pre-prints that reported anti-SARS-CoV-2 antibody...

The increasing use of cluster randomised trials in low-resource settings raises unique ethical issues. The Ottawa Statement on the Ethical Design and Conduct of Cluster Randomised Trials is the first international ethical guidance document specific to cluster trials, but it is unknown if it adequately addresses issues in low-resource settings. In t...