Judicaël Obame-Nkoghe

ORCID: 0000-0003-4301-7745
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Research Areas
  • Mosquito-borne diseases and control
  • Viral Infections and Vectors
  • Zoonotic diseases and public health
  • Malaria Research and Control
  • Vector-borne infectious diseases
  • Dengue and Mosquito Control Research
  • COVID-19 Clinical Research Studies
  • Long-Term Effects of COVID-19
  • Insect symbiosis and bacterial influences
  • Global Maternal and Child Health
  • COVID-19 diagnosis using AI
  • Insect Pest Control Strategies
  • Parasite Biology and Host Interactions
  • Parasites and Host Interactions
  • Insect and Pesticide Research
  • Insect Resistance and Genetics
  • Forest Insect Ecology and Management
  • Phytochemistry and Biological Activities
  • Child Nutrition and Water Access
  • Helminth infection and control
  • Insects and Parasite Interactions
  • Venomous Animal Envenomation and Studies
  • Plant and animal studies
  • Bat Biology and Ecology Studies
  • Ethnobotanical and Medicinal Plants Studies

Centre International de Recherches Médicales de Franceville
2016-2025

Université des Sciences et Techniques de Masuku
2019-2025

United States Department of State
2025

University of the Free State
2025

Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle
2016-2017

Agropolis International
2016-2017

Institut de Recherche pour le Développement
2017

Centre National de la Recherche Scientifique
2017

Abstract We look at the link between climate change and vector-borne diseases in low- middle-income countries Africa. The large endemicity escalating threat of such as malaria arboviral diseases, intensified by change, disproportionately affects vulnerable communities globally. highlight urgency prioritizing research development, advocating for robust scientific inquiry to promote adaptation strategies, vital role that next generation African leaders will play addressing these challenges....

10.1186/s40249-024-01193-5 article EN cc-by Infectious Diseases of Poverty 2024-03-14

About 60% of emerging infectious diseases in humans are zoonotic origin. Their increasing number requires the development new methods for early detection and monitoring agents wildlife. Here, we investigated whether blood meals from hematophagous flies could be used to identify circulating wild vertebrates. To this aim, 1230 blood-engorged were caught forests Gabon. Identified (30%) 20 vertebrate species including mammals, birds reptiles. Among them, 9% infected by different extant malaria...

10.7554/elife.22069 article EN cc-by eLife 2017-03-28

Evidence of haemosporidian infections in bats and bat flies has motivated a growing interest characterizing their transmission cycles. In Gabon (Central Africa), many caves house massive colonies that are known hosts Polychromophilus Dionisi parasites, presumably transmitted by blood-sucking flies. However, the role malaria remains under-documented. An entomological survey was carried out four to investigate fly diversity, infestation rates host preferences determine parasite transmission....

10.1186/s13071-016-1625-z article EN cc-by Parasites & Vectors 2016-06-10

In Africa, vector-borne diseases are a major public health issue, especially in cities. Urban greening is increasingly considered to promote inhabitants’ well-being. However, the impact of urban green spaces on vector risk remains poorly investigated, particularly forests poor hygienic conditions. Therefore, using larval sampling and human landing catches, this study investigated mosquito diversity forest patch its inhabited surroundings Libreville, Gabon, central Africa. Among 104 water...

10.3390/ijerph20105774 article EN International Journal of Environmental Research and Public Health 2023-05-10

Background Since its first record in urban areas of Central-Africa the 2000s, invasive mosquito, Aedes albopictus , has spread throughout region, including remote villages forested areas, causing outbreaks -borne diseases, such as dengue and chikungunya. Such invasion might enhance Ae . interactions with wild animals forest ecosystems favor spillover zoonotic arboviruses to humans. The aim this study was monitor wildlife reserve La Lopé National Park (Gabon), evaluate magnitude rainforest...

10.1371/journal.pntd.0011501 article EN cc-by PLoS neglected tropical diseases 2023-08-16

The Human T-cell Leukemia Virus Type 1 (HTLV-1) infection is endemic in Gabon, and despite the high prevalence, very few cases of HTLV-1 associated diseases are sporadically described. A cross-sectional study was conducted main teaching hospital Gabon. Using serological molecular techniques, plasma samples were tested nucleic materials all positive extracted from buffy coat, then a polymerase chain reaction (PCR) performed to detect fragments 220 522-base-pairs Tax/Rex Env genes,...

10.1371/journal.pntd.0013075 article EN cc-by PLoS neglected tropical diseases 2025-05-14

Abstract Landfills represent a cost-effective method for waste disposal but pose significant environmental and public health risks, including the spread of arthropod-borne diseases, if not properly managed. This study investigated arthropod assemblages in two municipal solid landfills Maluti-a-Phofung, Free State, South Africa, compared them with adjacent control sites. Arthropods were sampled using pitfall traps deployed active dormant landfill sites, as well pristine grassland biotopes,...

10.1093/inteam/vjaf058 article EN Integrated Environmental Assessment and Management 2025-05-05

<h3>Importance</h3> Since the emergence of COVID-19 in central China, sub-Saharan African countries, with exception South Africa, have been relatively spared during pandemic. Consequently, few descriptive studies from this region are available. <h3>Objective</h3> To describe clinical characteristics and outcomes patients infection Gabon, March to June 2020. <h3>Design, Setting, Participants</h3> A single-center, cross-sectional study 837 was conducted 2020 Armed Forces Hospital Libreville,...

10.1001/jamanetworkopen.2021.24190 article EN cc-by-nc-nd JAMA Network Open 2021-09-14

In Africa, vector-borne diseases (VBDs) are still a major public health issue especially in cities that gather an increasing human population. Market gardening practices, for example, can favor the transmission of urban malaria, while insufficient water supply and waste management circulation arboviroses related to Aedes mosquitoes. Urban planning is challenge mitigate vector risks. As strategy, greening concept increasingly considered as element impacting well-being inhabitants, but also...

10.20944/preprints202302.0273.v1 preprint EN 2023-02-16

Abstract Caves house pathogenic microorganisms, some of which are transmitted by blood-sucking arthropods. In Africa, previous studies identified mosquitoes, sand flies and biting midges as the main potential vectors cave-dwelling pathogens. However, to understand their involvement in pathogen spillover, it is crucial characterize diversity, community composition dynamics. Using CDC light traps, we collected hematophagous Diptera six caves Gabon during one-shot or longitudinal sampling,...

10.1038/s41598-017-00328-z article EN cc-by Scientific Reports 2017-03-15

Zoopharmacognosy is the study of self-medication behaviors non-human animals that use plant, animal or soil items as remedies. Recent studies have shown some plants employed by may also be used for same therapeutic purposes in humans. The aim this was to determine antioxidant and antibacterial activity Ceiba pentandra , Myrianthus arboreus Ficus subspecies (ssp.) Milicia excelsa bark crude extracts (BCE), consumed western lowland gorillas ( Gorilla gorilla ) Moukalaba-Doudou National Park...

10.1371/journal.pone.0306957 article EN cc-by PLoS ONE 2024-09-11

Gastrointestinal infestations caused by intestinal parasites are the most important diseases and common in pigs tropics. These often associated with a huge economic loss. This study aimed to assess diversity prevalence of gastrointestinal farmed from Haut-Ogooue Province, South East Gabon.From March 2018 July 2018, 156 samples pig feces collected nine different farms were analyzed under light microscopy. The identification eggs, cysts, oocysts fecal was done using two qualitative techniques:...

10.14202/vetworld.2019.1888-1896 article EN cc-by Veterinary World 2019-12-01

The COVID-19 disease presents a large range of clinical manifestations and includes asymptomatic, mild, severe cases. level severity is related to parameters associated with immunity, genetics, biochemistry. Africa shows one the lowest fatality rates but very few data on biochemical markers in patients factors are available for continent. In Gabon, rate only 0.63% almost no biomarkers have been published. Both number cases mortality reported general, Gabon particular, lower than non-African...

10.3389/fcimb.2022.975712 article EN cc-by Frontiers in Cellular and Infection Microbiology 2022-12-23

Abstract Aedes aegypti and albopictus are major mosquito vectors for arthropod-borne viruses (arboviruses) such as dengue (DENV) Zika (ZIKV) viruses. Mosquitoes also carry insect-specific (ISVs) that may affect the transmission of arboviruses. Here, we analyzed global virome in urban mosquitoes observed two viruses, Phasi Charoen-like virus (PCLV) Humaita Tubiacanga (HTV), were most prevalent A. worldwide except African cities, where arboviruses is low. Spatiotemporal analysis revealed...

10.1101/2021.06.05.447047 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2021-06-05

ABSTRACTThe two main Zika virus (ZIKV) vectors, Aedes albopictus and aegypti (invasive native species, respectively), are present in Gabon (Central Africa). The aim of this study was to determine the entomological ZIKV risk associated with these mosquito species by evaluating their vector competence for an African (i.e. representative endemic strains circulating sub-Saharan Africa) Asian representatives exogenous epidemic that could be introduced) strains. transmission efficiency one Ae....

10.1080/22221751.2021.1939167 article EN cc-by Emerging Microbes & Infections 2021-01-01

RÉSUMÉ Objectifs : Le paludisme demeure un problème majeur de santé publique dans les zones rurales d’Afrique subsaharienne. but cette étude était d’évaluer connaissances et méthodes lutte antipaludique au sein des ménages la cité minière Moanda en zone semi-rurale Sud-Est Gabon. Méthodologie Résultats Une enquête transversale descriptive a été conduite d’avril à juin 2018 auprès 128 vivant Moanda. connu tous interrogés (100%). grande majorité (82%) avait une bonne connaissance son mode...

10.35759/jabs.159.5 article FR Journal of Applied Biosciences 2021-03-31
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