A5084442972- Vector-Borne Animal Diseases
- Trypanosoma species research and implications
- Parasitic Diseases Research and Treatment
- Parasite Biology and Host Interactions
- Parasites and Host Interactions
- Genetic and phenotypic traits in livestock
- Helminth infection and control
- Vector-borne infectious diseases
- Viral Infections and Vectors
- Agriculture and Rural Development Research
- Invertebrate Immune Response Mechanisms
- Insect Utilization and Effects
- Livestock Farming and Management
- Genomics and Phylogenetic Studies
- Livestock and Poultry Management
- Insects and Parasite Interactions
- Insect symbiosis and bacterial influences
- Evolution and Paleontology Studies
- Insect-Plant Interactions and Control
- Genetic diversity and population structure
- Macrophage Migration Inhibitory Factor
- Insect and Arachnid Ecology and Behavior
- Morphological variations and asymmetry
- Genetic Mapping and Diversity in Plants and Animals
- Antimicrobial Peptides and Activities
University of Bamenda
2015-2023
Tanabe Research Laboratories
2020
Institut de Recherche Agricole pour le Développement
2000-2018
University of Strathclyde
2000-2006
University of Ngaoundéré
1997
Background Recent reports of transmission interruption Onchocerca volvulus, the causing agent river blindness, in former endemic foci Americas, and more recently West East Africa, raise question whether elimination this debilitating disease is underway after long-term treatment population at risk with ivermectin. The situation Central Africa has not yet been clearly assessed. Methods findings Entomologic data from two basins North Cameroon were generated over a period 43 48 months to...
We present a population genetic analysis of microsatellite variation in 16 West African cattle populations. Africa represents unique juxtaposition different climatic and ecological zones relatively small geographical area. While more humid coastal regions are inhabited by the tsetse fly, vector which spreads trypanosomiasis among cattle, disease is not transmitted drier areas outside this zone. This most thorough study diversity within area, contains genetically important trypanotolerant Bos...
Abstract The effect of three phenols (ellagic, gentisic and gallic acids) from the axlewood tree Anogeissus leiocarpus on Onchocerca ochengi drug-resistant strains Caenorhabditis elegans , a model organism for research nematode parasites, is investigated. Worms were incubated in different concentrations their survival was monitored after 48 h. Among acids, ellagic acid strongly affected O. microfilariae, adults, wild-type C. anthelmintic-resistant namely albendazole (CB3474), levamisole...
African trypanosomes are mainly transmitted through the bite of tsetse flies (Glossina spp.). The present study investigated occurrence pathogenic in and cattle fly-infested areas Northern Cameroon.
The control of animal trypanosomosis consists, amongst other things, the punctual treatment new cases, primarily diagnosed by pastoralists on basis clinical signs. This practice suggests that many apparently healthy infected animals are left untreated. In this study in clinically zebu cattle was evaluated, distribution vectors established and epidemiological implications discussed.In 2014 two cross-sectional surveys were carried out Cambeef ranch. A total 866 blood samples collected from...
The front line molecules from filarial worms and other nematodes or helminthes are their Excretory-Secretory (ES) products. Their interaction with the host cells, proteins immune system accounts for skin eye pathology hyposensitivity observed in human onchocerciasis. ES products adult worms' crude extracts Onchocerca ochengi, a nematode that infects African zebu cattle, were utilized present study as model studying volvulus causes river blindness man.
Abstract Background African animal trypanosomosis remains the major constraint of livestock production and livelihood pastoral communities in Cameroon. Despite several decades vector parasite control efforts, it has not been eradicated. Alternative sustainable strategies require a sound knowledge local species, strains vectors. In Sudano-Sahelian Guinea Savannah Cameroon prevalence genetic diversity trypanosomes infecting cattle was investigated by microscopy blood buffy coat molecular...
SUMMARY Epidemiological evidence has led to the hypothesis that concurrent and predominant transmission of Onchocerca ochengi by Simulium damnosum s.l. in sub‐Saharan Africa could lead protection humans against onchocerciasis caused volvulus (zooprophylaxis). To gain support for this hypothesis, we investigated whether exposure O. protect cattle from . Gudali calves were vaccinated with live ‐infective larvae subsequently challenged ochengi‐ infective whilst raised a fly‐proof house....
Depuis plus de deux décennies, les mesures lutte antivectorielle contre la trypanosomose sont menées dans zone des savanes du Cameroun. Afin d’évaluer l’impact ces sur prévalence maladie, trois zones (zone assainie, front et non assainie) ont été localisées le plateau l’Adamaoua. Des échantillons sanguins prélevés 349 animaux vivant utilisés pour mesurer l’hématocrite. En outre, à partir couches leucocytaires obtenues échantillons, observations microscopiques permis détermination taux...
A cross-sectional study involving a questionnaire, parasitological examination of cattle and entomological prospection were conducted in the Mezam Division Cameroon from December 2013 to May 2014 two seasons for first time. The objectives determine prevalence bovine trypanosomiais its vectors. Peasant farmers ﴾n=95﴿ interviewed. Standard protocols parasitological, hematocrit analysis as well trypanosome identification used. Acetone baited blue biconical traps ﴾n=5﴿ used survey. Questionnaire...
African indigenous taurine cattle display unique adaptive traits shaped by husbandry management, regional climate and exposure to endemic pathogens. They are less productive with respect milk meat production which has been associated amongst others, small size, traditional beliefs, practices, limited feed resources, disease burden lack of sustained breeding for trait improvement. This resulted in the severe dwindling their population size rendering them vulnerable extinction. The Namchi...
Abstract Onchocerca volvulus is a tissue-dwelling, vector-borne nematode parasite of humans and the causative agent onchocerciasis or river blindness. Natural infections BALB/c mice with Litomosoides sigmodontis cattle ochengi were used as models to study immune responses O. -derived recombinant proteins ( Ov ALT-2, NLT-1, 103 7). The humoral response -infected against NLT-1 7 revealed pronounced immunoglobulin G (IgG) titres which were, however, significantly lower than lysate adult female...
Trypanosomosis remains the number one killer of livestock in spite efforts made to eradicate tsetse flies Adamawa plateau Cameroon. Acetone-baited Laveissière type biconical traps were pitched at 100 meter intervals strategic geo-referenced positions various ecological niches landscape for 5 consecutive days selected villages Mayo Rey, Mbere, Vina and Faro et Deo divisions. All 493 captured sites other than Mboula wereG. morsitans submositans.Measurement different morphometric characters on...