Okoi Effiom

• PhD in Parasitology
• Professor (Associate) at Veritas University

Propionibacterium are known to cause outbreaks of a variety of skin infections like pimples, chronic blepharitis, inflammation, post-operative shoulder infections, etc., in both rural and urban settlers. This study therefore aimed to investigate the efficacy of ginger (Zingiber officinale roscoe) and turmeric Curcuma louga) extracts against Propion...

This study aims to verify the susceptibility of ABO and Rhesus blood groups to HIV/AIDS infection in Calabar Municipality, CRS, Nigeria. The susceptibility levels of ABO and Rhesus blood groups to HIV/AIDS infection was investigated in 300 confirmed HIV/AIDS patients in Calabar, using the HIV/AIDS Unit of the nGeneral Hospital Calabar, Cross River...

Aim: This study aimed to verify the mosquitocidal activity of phytochemical extracts from peels, pulp and seeds of citrus fruits species against adult mosquitoes in the field. Materials and methods:The peels, pulp and seeds of Citrus sinensis, Citrus aurantifolia, Citrus limonum, Citrus reticulata and Citrus vitis were obtained and air-dried for 3...

Abstract— Cimex (bedbugs) are blood-sucking ectoparasites of mammals which infest human habitations during which they suck the blood of their human victims. Besides their nuisance, their itchy bites also cause some dermatological allergies such as skin irritations and scratching accompanied by development of skin disfiguring rashes that sometim...

Poor Waste Management has been a major occupational health risk and source of accident to both Waste Workers and scavengers. It has also impacted negatively on the aesthetics of our environment, and thus constitute a global public health problem, beside becoming pathways for Hepatitis B virus infection. This study investigated the prevalence of HBV...

Dental caries is an infectious microbiological disease of the teeth that end up in the destruction of dental hard tissues. The use of toothpaste has been used to reduce the bacterial load in the mouth because they contain antimicrobial properties such as triclosan, fluoride, and so on. The study aimed to determine the effect of nine brands of tooth...

Cimex (bedbugs) are blood-sucking ectoparasites of mammals which infest most especially human habitations during which they suck the blood of their human host. Besides their nuisance to the human hosts, their itchy bites also cause some dermatological allergies such as skin irritations and scratching accompanied by development of skin disfiguring r...

Stigma is like wild fire that everyone runs away from It is contagious and deadly. In a bid to avoid stigmatization, many PLWHA had evaded medical care thereby causing their viral load to increase exponentially. At the end of the day, they develop fell blown AIDS and the symptoms HIV begin to stare on their faces. This study investigated the observ...

Simuliumdamnosum, commonly known as black flies, are the mechanical vectors of Onchocerca volvulus. Onchocerciasis (or river blindness), is a disease caused by this species of microfilariae in humans in the tropical and subtropical regions of the globe. Critical public health and socio-economic problems arise due to Onchocerciasis, an insidious non...

The kill times of the minimum lethal concentrations (MLCs) of extracts from peels, pulp and seeds of five species of citrus fruits tested against mosquito larvae were evaluated. To obtain the phytochemicals from these citrus fruit parts Soxchlet extraction using Diethyl Ether as solvent was carried out at a temperature range between 60 o C and 80 o...

A field study of the status and distribution of available soil micronutrients along a hillslope of Ekpri Ibami was carried out on a 50 ha land. The aim of the study is to evaluate the micronutrient status and distribution and their relationship with some selected soil properties. A total of 16 soil samples were collected from each pedogenic horizon...

Hookworm infection has long been classified as the second most common parasitic helminth disease of the tropic and sub-tropic most especially because besides its grievous public health implications, some of which are due to the pathological damage it causes in the human host’s tissue and organs, the disease also has negative impacts on both human a...

For inhabitants to appreciate clean environment there is need to examine the distribution and effects of parasites in refuse dump stands at different locations in Calabar city. The parasitological investigation of refuse dumps in Calabar South of Cross River State, Nigeria, was carried out in randomly selected eight refuse dump stands between Augus...

Gmelina arborea Roxb has important economic value in Nigeria and worldwide. It has been used as timber, for pulp and paper, furniture, plywood and for particle board. Due to the menace caused by fungal diseases in nurseries and sites where the seedlings are raised and the observed disease severity at the Awi Gmelina Forestry Project Nursery in Cros...

The ability of local strains of Streptomyces to produce invertase enzyme which finds applications in several industries was investigated. Using a local medium, invertase enzyme was obtained from 4 (four) Streptomyces species isolated from selected sites. Each isolate was designated OZMU 1, OZMU 2, OZMU 3, and OZMU 4 respectively. OZMU 2 had the hig...

Parasitic worm infections have been of great concern to man, most especially in developing countries. As a result, research activities to enlighten people about the infections, looking for ways of controlling and reducing the infections or curative measures to combat the diseases continue to be a major concern. The prevention of these worm infectio...

This study assessed the bio-efficacies of phytochemical extracts from peels, pulp and seeds of citrus fruits species on adult Anopheles gambiae and Anopheles funestus under laboratory conditions. The assessment established the most potent extract(s) that could be adopted in sustainable control of malaria vectors. The peels, pulp and seeds obtained...

The mosquito repellent activity of phytochemical extracts from Peels of five citrus fruit species, Citrus sinensis, Citrus limonum,Citrus aurantifolia, Citrus reticulata and Citrus vitis, was investigated. The volatile phytochemical extracts were obtained from processed air-dried and powdered citrus fruit peels by Soxchlet extraction using Diethyl...

This research aimed to investigate the physico-chemical parameters of various mosquito-breeding sites in Ekori, Cross River State, Nigeria. Knowledge of physico-chemical factors that influence mosquito breeding could be useful in mosquito population control. Larvae of mosquitoes were collected fortnightly from 28 breeding sites, and identified into...

This collaborative study to evaluate the minimum lethal concentrations (MLCs) of phytochemical larvicide extracts from peels, pulp and seeds of Citrus sinensis, Citrus limonum, Citrus aurantifolia, Citrus reticulata and Citrus vitis, was undertaken in support of the ongoing global search for phytochemical alternatives to synthetic chemical insectic...

Investigation on the effect of Asystasia vogeliana powder on bean weevil (Callosobruchus maculatus) was carried out in CRUTECH, Calabar, with a view to protecting Vigna unguiculata and having an alternative means to chemical application on beans (Vigna unguiculata) in storage. The powder of Asystasua vogeliana (Yoseh) was applied at different dosag...

The study was aimed at determining the relationship between Onchocerca volvulus microfilaraemia and the clinical manifestations of onchocerciasis in the endemic Umuowaibu and Ndiorji communities in southeastern Nigeria. Two skin snips (each from the shoulder and the waist) were taken for parasitological examination from each individual during dayti...

Studies on Plasmodial infectivity rate of female Anopheles mosquitoes and the occurrence of malaria in humans in the Cross River University of Technology, Calabar Campus, Calabar, Nigeria, was investigated. The mosquitoes were caught using standard entomological procedures, processed and examined for the presence of oocysts and sporozoites. Human i...

Four Hundred (400) samples of Chrysichthys nigrodigitatus were examined for Henneguya chrysichthys using methods described for gills examination and haemopatholgy. 135 (33.8%), Chrysichthys nigrodigitatus were infected by Henneguya chrysichthys. The infection was seen on the gill filament as an oval cyst somewhat white and visible to the naked eyes...

Background & objectives: The study was aimed at elucidating the prevalence and intensity of Mansonella perstans microfilaraemia in the Emohua Local Government Area, Nigeria, and ascertaining the abundance, circadian, and the annual biting patterns of the Culicoides vector. Methods: Thick smear of 50 μl finger-prick blood stained with Giemsa was exa...

The study was aimed at assessing common geophagy among children from high and low income areas of Calabar, and to elucidate to what extent it has influenced the epidemiology of intestinal parasitic infections. A structured questionnaire was administered and bottles were distributed for stool sample collection. A total of 598 faecal samples were exa...