Medical Entomologist · Public Health Malaria Program Manager
Applied entomology, LLIN evaluation, insecticide resistance and public health programs across Africa.
Doctor of Medical Entomology (PhD) and public health expert with 10+ years of field experience in Sub-Saharan Africa. Specialized in Phase II/III clinical and entomological trials, vector genomic surveillance, and strategic policy design for NMCPs and international agencies.
Available for international missions & consultations
01 — Profile
Dr Idelphonse Bonaventure AHOGNI is a Medical Entomologist (PhD) and Senior Researcher at the Entomological Research Centre of Cotonou (CREC) in Benin.
With over a decade of operational research experience, he specializes in the evaluation of next-generation vector control interventions (dual-active LLINs, IRS), genomic surveillance of insecticide resistance (kdr, ace-1, metabolic cytochromes P450), and direct strategic technical support to National Malaria Control Programs (NMCPs) and global agencies (WHO, The Global Fund, PMI/USAID, PAMCA).
EN« Bridging cutting-edge entomological research with national public health decision-making to accelerate malaria elimination. »
03 — Metrics & Impact
Research focused on operational application, measured by global scientific citations and a dense international network of partner institutions.
03 — Skill Mapping
Polygonal visualization of Dr. Ahogni's expertise pillars, spanning fundamental entomology to public health policy implementation.
Scientific keywords associated with publications and keynote lectures:
WHO tubes, CDC bottles, residual efficacy in experimental huts
PCR, high-throughput sequencing, resistance gene tracking
PBO, chlorfenapyr, pyriproxyfen community and semi-field trials
Entomological Inoculation Rate, vector transmission dynamics
National strategic plans, Global Fund advisory, policy leadership
Masterclasses, thesis co-supervision, training African scholars
02 — Expertise
Phase II experimental hut trials and Phase III community-level studies on next-generation dual-active nets (Interceptor G2, Royal Guard).
WHO tube assays, CDC bottle bioassays, PBO synergist testing, and characterization of pyrethroid cross-resistance mechanisms.
High-throughput PCR genotyping for target mutations kdr (L1014F/S), ace-1 (G119S), and metabolic P450 cytochrome overexpression.
Operational implementation of OECD/WHO Good Laboratory Practice (GLP) for insectaries, testing protocols, and certified data archiving.
High-level technical advisory, national vector control policy briefs, insecticide resistance management plans, and Global Fund proposals.
Nationwide coordination of entomological sentinel sites (Covè, Akron, Parakou, Kandi) monitoring vector transmission dynamics.
Statistical modeling of Abbott-corrected mortality rates, Fleiss sample size calculations with continuity corrections, and probit regressions.
Knowledge transfer, international masterclasses in public health entomology, and co-supervision of MSc and PhD candidates.
02 — Vector Biology & Microscopy
Interactive visualization of essential vector organs: roles in the Plasmodium parasitic life cycle and molecular insecticide targets.
Secretion of apyrase and anophelin (vasodilators and anticoagulants) facilitating rapid blood feeding.
Ultimate reservoir of infectious Plasmodium falciparum sporozoites injected during human probing.
Diagnostic target for salivary gland dissection or ELISA-CSP to calculate the Sporozoite Rate (SR).
Fascicle of 6 stylets (labrum, mandibles, maxillae, hypopharynx) penetrating the host epidermis.
Physical inoculation pathway delivering parasites into dermal capillaries.
First mechanical contact point with insecticide-treated bednets (LLINs) and spatial repellents.
Digestion of blood meal and secretion of the protective peritrophic matrix.
Site of gametocyte fertilization, ookinete motility, and Plasmodium oocyst development.
Target for transmission-blocking vaccines (TBV) and paratransgenic endosymbionts (Asaia / Wolbachia).
Egg development and maturation following each blood meal (48-72h gonotrophic cycle).
Key biometric indicator of mosquito parity, longevity, and reproductive output.
Ovarian tracheolar dissection for physiological parity determination. Sterilizing target of pyriproxyfen (Royal Guard nets).
Propagation of action potentials along neuronal axons in the insect central nervous system.
Essential for mosquito motor coordination and flight reflex.
Pharmacological target of pyrethroids and DDT. Point mutations L1014F (kdr-w) and L1014S (kdr-e) prevent insecticide binding.
Intermediary metabolism, lipid energy storage, and nitrogenous waste excretion.
Primary metabolic factory for enzyme biosynthesis.
Major site of Cytochrome P450 monooxygenase (CYP6P3, CYP6M2) overexpression and GST detoxification enzymes conferring metabolic resistance.
05 — Entomology & Resistance
Interactive tools for anopheline species identification and standardized WHO bioassay susceptibility modeling.
Primary dominant malaria vector in Sub-Saharan Africa
Dominant vector across urban, peri-urban, and agricultural rice irrigation schemes
Critical dry-season vector extending annual malaria transmission periods
Asian urban vector rapidly spreading across East and West Africa
Observed mortality is strictly below 90%. Confirmed resistance is established for this insecticide. It is recommended to conduct synergist bioassays (PBO) and molecular characterization of kdr and P450 markers.
05 — Field Ecology & Experimental Stations
National network of experimental hut stations, reference insectaries, and entomological surveillance sites coordinated for vector control evaluation.
Irrigated rice paddies and rural floodplains (Zou valley) supporting exceptional year-round anopheline densities.
Anopheles gambiae s.s. and Anopheles coluzzii in sympatry, dominated by coluzzii in the wet season.
Extreme pyrethroid resistance (kdr L1014F frequency > 90% and high CYP6P3/CYP6M2 overexpression).
WHO Phase II experimental hut evaluation of dual-active LLINs (Interceptor G2, Royal Guard) and IRS (Actellic 300CS).
Peri-urban and lagoon agro-ecosystem (Porto-Novo lagoon) with intensive vegetable farming and heavy agricultural pesticide exposure.
Anopheles coluzzii exceptionally adapted to anthropogenic, polluted water bodies.
Complex multi-resistance: kdr L1014F and ace-1 G119S alleles conferring organophosphate/carbamate resistance.
Pyriproxyfen sterilizing efficacy studies and testing of novel spatial repellents.
Central molecular biology platform, climate-controlled bioassay testing suites, and WHO-standard reference insectaries.
Continuous colonization of standard susceptible reference strains (Kisumu) and wild field-collected colonies.
High-throughput PCR genotyping, sequencing, and biochemical microplate assays (P450s, GSTs, esterases).
Nationwide centralization of WHO tube assays and strategic coordination for NMCP and WHO technical programs.
Sudano-Guinean savannah zone with distinct rainy and dry seasons.
Anopheles gambiae s.s. and Anopheles funestus extending dry-season transmission windows.
Dominant metabolic resistance in An. funestus driven by CYP6P9a gene duplication.
Post-distribution monitoring of mass PBO LLIN campaign durability and community impact.
Sahelian zone and Niger River basin with extensive agricultural irrigation schemes.
Anopheles gambiae s.l. and Anopheles rufipes.
Moderate residual susceptibility to organophosphates with emerging target-site kdr alleles.
Cross-border entomological surveillance and vector dynamics monitoring around agricultural dams.
04 — Eco-Epidemiology & Climate
Live monitoring of thermo-hygrometric factors and Larval Suitability Index modeling across 4 Benin ecoregions.
Main rainy season / Constant humidity
Flooded lowlands, coastal lagoons, polluted peri-urban containers (An. coluzzii).
Reinforced surveillance of artificial containers and priority deployment of dual-active LLINs.
Bimodal rainfall regime / Rice cropping peaks
Irrigated fields in Zou valley, rice paddies, and agricultural reservoirs.
Peak Anopheles emergence risk. Imperative mass deployment of Interceptor G2 mosquito nets.
Intermediate rainy season / Climatic transition
Cattle hoofprints, seasonal stream banks, and temporary rain pools.
Targeted surveillance of residual transmission by Anopheles funestus along water bodies.
Hot dry season / Strong water stress
Irrigated perimeters along the Niger River and permanent livestock drinking troughs.
Focus microbial larviciding (Bti) strictly on sparse permanent residual breeding sites.
06 — Population Genetics & Markers
Interactive population genetics model to analyze evolutionary dynamics of resistance markers (<em>kdr</em> L1014F/S, <em>ace-1</em> G119S) in Anopheles vectors.
| Genotype | Observed (O) | Expected HWE (E) | Partial χ² |
|---|---|---|---|
| SS | 12 | 9.61 | 0.59 |
| RS | 38 | 42.78 | 0.53 |
| RR | 50 | 47.61 | 0.12 |
| Total χ² (1 df) | 1.24 (Not significant, p > 0.05) | ||
Resistance allele <em>R</em> frequency is <strong>69.0%</strong>. The vector population adheres to Hardy-Weinberg equilibrium (χ² = 1.24 < 3.84). The allele is advancing toward fixation under intense insecticide selection pressure.
07 — Methodology & Biostatistics
Biometric tool to calculate required mosquito sample sizes in bioassay protocols, WHO cone tests, and experimental hut residual efficacy monitoring.
n = [Zα/2 · √(2p̄(1-p̄)) + Zβ · √(p₁(1-p₁) + p₂(1-p₂))]² / (p₁ - p₂)²
To detect a mortality difference of <strong>35.0%</strong> (40% → 75%), expose a minimum of <strong>32 mosquitoes</strong> per experimental arm (rounded to <strong>2 tubes of 25</strong> mosquitoes per arm, 100 total with controls).
04 — Prevention Tools & LLINs
Comparative analysis of long-lasting insecticidal nets (LLINs): modes of action, efficacy against multi-resistant vectors, and WHO prequalification status.
Blocks voltage-gated sodium channels (axonal hyperexcitation and mortality via knockdown effect).
Effective only against fully susceptible populations (Kisumu). Efficacy compromised in kdr areas.
Phased out from mass distribution campaigns in Benin due to high prevalence of kdr L1014F (>80%).
PBO inhibits insect Cytochrome P450 enzymes, restoring susceptibility to pyrethroids.
Overcomes metabolic resistance driven by overexpression of CYP6P3, CYP6M2 and CYP6P9.
Successfully deployed in Zou and Collines departments during nationwide mass distribution campaigns.
Pro-insecticide activated in vivo: uncouples oxidative phosphorylation in mitochondria (ATP disruption).
No cross-resistance with pyrethroids, carbamates or organophosphates.
Demonstrated superiority in Benin (CREC / LSHTM) with significant reduction in clinical malaria incidence.
Dual-action: adult knockdown coupled with irreversible sterilization of surviving female mosquitoes.
Drastic reduction in vector fecundity, egg hatching rate, and lifespan of resistant vectors.
Evaluated in Covè and Akron experimental hut stations for multi-generational resistance management.
12 — Health Economics & Policy
Health-economic model to evaluate unit cost per person protected and cost per malaria case averted across technological interventions in resistance zones.
Deploying Chlorfenapyr Dual-Active LLINs (Interceptor G2) averts approximately 23,100 clinical malaria cases annually in a district of 150,000 residents, delivering an outstanding unit cost of $8.10 per case averted (well below WHO threshold benchmarks).
ENField Research · Entomological Surveillance
EN« No malaria elimination strategy can succeed without rigorous entomological surveillance and evidence-based vector control. »
03 — Career
From the lab to ministerial decision rooms: a journey built between cutting-edge research, multi-country project management, and direct support to national malaria control programs.
Projects & Programs
Funder : Unitaid / The Global Fund / IVCC
Role : Principal Investigator & Field Coordinator (Benin)
Benin, Burkina Faso, Rwanda, Mozambique, Nigeria
Phase II experimental hut and Phase III community trials evaluating the entomological and epidemiological impact of chlorfenapyr (Interceptor G2) and pyriproxyfen (Royal Guard) nets in high pyrethroid-resistance zones.
Funder : PMI / USAID / NMCP Benin
Role : Senior Entomologist & Bioassay Network Coordinator
Benin (12 departments nationwide)
Annual nationwide monitoring of vector susceptibility against standard WHO insecticide panels, genomic mapping of resistance markers (kdr, ace-1, P450s), and technical guidance for national net allocation stratifications.
Funder : WHO / TDR & International Consortia
Role : Technical Supervisor & GLP Quality Assurance Officer
Benin, Ghana, Côte d'Ivoire
Assessment of residual efficacy decay for microencapsulated organophosphate (Pirimiphos-methyl CS) and neonicotinoid formulations across various traditional mud and cement wall substrates.
04 — Grants & Operational Research
Translational research grants and large-scale operational trials conducted in partnership with international funding bodies and Ministries of Health.
Role: Principal Investigator & Entomology Lead
Coordinating clinical malaria incidence tracking and residual bio-efficacy of Interceptor G2 nets distributed during national mass campaigns.
Role: Co-Investigator & Technical Expert
Establishing nationwide annual insecticide susceptibility mapping across sentinel sites and capacity training of field entomology teams.
Role: Lead Investigator & Technical Focal Point
Deploying high-resolution surveillance protocols to intercept and characterize early introduction of the invasive urban malaria vector.
Role: Associate Postdoctoral Fellow (CREC / LSHTM)
Whole-genome sequencing of vector mosquitoes collected across ecoclimatic gradients and selection signature analysis around P450 loci.
04 — Education & Toolkit
Molecular and metabolic mechanisms of insecticide resistance in Anopheles gambiae s.l. in Benin and operational efficacy of next-generation dual-active LLINs.
Applied epidemiology, biostatistics, design, and strategic management of vector-borne disease control programs.
Phenotypic and biochemical characterization of malaria vector susceptibility to pyrethroids and organophosphates.
Animal biology, population genetics, and general environmental ecology.
10 — Mentorship & Academic Training
Research supervision, PhD dissertation co-direction, and Master's theses mentoring in medical entomology and public health.
Thème de recherche : « Spatial dynamics of multiple resistance (kdr/ace-1) in Anopheles coluzzii across urban agricultural systems in southern Benin. »
Thème de recherche : « Evaluation of residual bio-efficacy of Interceptor G2 mosquito nets following 24 months of community deployment. »
Thème de recherche : « Enzymatic characterization of Cytochrome P450s in dry-season Anopheles funestus populations. »
Thème de recherche : « Impact of Vgsc gene mutations on behavioral deterrence and survival of Anopheles gambiae under PBO mosquito nets. »
05 — Publications
→ 25+ peer-reviewed international publications· full list available onResearchGate ↗ · View all publications catalogue ↗
06 — Awards & Fellowships
07 — Professional Service & Affiliations
08 — Scientific Communications (20+)
08 — Video Library & Lectures
Curated selection of recorded webinars, international symposia keynotes, and scientific broadcast interviews.
24:15Field presentation on the evolutionary dynamics of kdr and CYP450 resistance markers in Benin.
42:00Technical webinar covering standardized bioassay protocols and resistance management frameworks.
15:30Expert interview detailing strategic dual-active net distribution and community adoption.
14 — Micro-Learning & Audio Lectures
Concise audio briefings to quickly master foundational vector control concepts, listen to Dr. Ahogni's explanations, and read full transcripts.
By Dr. Idelphonse Ahogni, PhD
Chlorfenapyr belongs to the pyrrole class. Unlike neurotoxic insecticides that target ion channels or synaptic transmission, chlorfenapyr is a pro-insecticide. Once metabolized inside the mosquito, cytochrome P450 enzymes convert it into CL 303268. This active metabolite enters the mitochondria and uncouples oxidative phosphorylation, halting ATP production. The vector dies of cellular metabolic exhaustion without exhibiting cross-resistance to conventional pyrethroids.
By Dr. Idelphonse Ahogni, PhD
Human Landing Catches (HLC) remain the gold standard for measuring human-vector contact. Conducted by trained collector pairs operating in shifts from 18:00 to 06:00, HLC establishes hourly biting rhythms, indoor vs. outdoor biting ratios (endophagy vs. exophagy), and when paired with laboratory CSP-ELISA, the Entomological Inoculation Rate (EIR). Collectors receive regular malaria screening and prophylactic coverage.
By Dr. Idelphonse Ahogni, PhD
Historically, malaria transmission in sub-Saharan Africa has been predominantly rural, driven by Anopheles gambiae and An. funestus. The invasion of Anopheles stephensi fundamentally alters this paradigm: this vector thrives in clean man-made water containers across dense urban environments (overhead tanks, cisterns, tires). Its detection across coastal West Africa requires cross-border surveillance and a transition towards urban larval source management.
08 — Veille Épidémiologique & Alertes
Synthèses régulières sur la dynamique spatiotemporelle de la transmission du paludisme, les alertes vectorielles régionales et les recommandations opérationnelles de santé publique.
With the return of heavy rains, temporary freshwater breeding sites suitable for Anopheles coluzzii and An. gambiae are proliferating. Vector survival and the entomological inoculation rate (EIR) are surging.
WHO initiative alert on the dissemination of An. stephensi in West Africa. This urban vector thrives in clean water storage barrels, cisterns, and domestic overhead tanks.
WHO reiterates the priority of targeted chlorfenapyr net allocation in settings with documented pyrethroid resistance.
09 — Countries of Intervention
Eight years of clinical trials, cutting-edge research, and multi-country programs across Western, Central, Eastern, and Southern Africa. Click on a map marker or a country in the list to explore projects and intervention details.
09 — Field & Laboratory Gallery
Immersion in daily operational research: larval surveys, WHO bioassays, experimental huts, and academic capacity building.
07 — Resources & Training Hub
Standard operating procedures (WHO/GLP SOPs), methodological guidelines, and training materials for students, researchers, and health technicians.
Step-by-step methodology for evaluating Anopheles vector susceptibility to diagnostic WHO insecticides (exposure time, KD tracking, and 24h mortality).
Identification keys for temporary and permanent breeding sites of Anopheles gambiae s.l. with field ecological survey sheets.
Postgraduate Master-level slides in Medical Entomology detailing target-site gene mutations and metabolic enzymatic detoxification pathways.
Optimal climate parameters (27°C ± 2), relative humidity (80% ± 10), membrane blood feeding, and photoperiod cycles for reference susceptible colonies.
13 — Quality & Good Laboratory Practices
Interactive compliance audit grid based on WHO and OECD guidelines to evaluate operational standards of medical insectaries and bioassay procedures.
Your testing facility complies with all WHO scientific integrity benchmarks. Generated bioassay and Phase II hut data meet international prequalification standards.
09 — Terminology & Scientific Glossary
Rigorous definitions and operational concepts of vector control, insecticide resistance, and malaria epidemiology.
The number of infectious mosquito bites received by an individual over a specified time period (usually per year). It is the gold-standard metric for malaria transmission intensity.
Nombre de piqûres de moustiques infectés par le Plasmodium reçues par une personne pendant une période donnée (généralement par an ou par nuit). C'est l'indicateur direct de référence de la pression de transmission du paludisme.
The time required to immobilize 50% or 95% of exposed mosquitoes during a standard bioassay. A delayed knockdown time is an early indicator of knockdown resistance (kdr).
Temps requis pour paralyser ou assommer 50% ou 95% des moustiques exposés à un insecticide lors d'un test diagnostique. Un allongement significatif du KDT est le premier signe de résistance aux pyréthroïdes.
A synergistic chemical agent that inhibits insect cytochrome P450 monooxygenases, thereby restoring pyrethroid toxicity against metabolically resistant mosquito strains.
Composé chimique synergiste qui inhibe l'activité enzymatique des Cytochromes P450 chez le moustique, restaurant ainsi l'efficacité léthale des pyréthroïdes face aux populations à résistance métabolique.
Anthropophily is the preference of vectors to feed on human blood over animal hosts. Endophagy describes the habit of biting indoors rather than outdoors (exophagy).
L'anthropophilie désigne la préférence trophique du moustique pour le sang humain plutôt qu'animal. L'endophagie désigne le comportement de piqûre à l'intérieur des habitations humaines (par opposition à l'exophagie).
A target-site point mutation in the voltage-gated sodium channel gene reducing pyrethroid and DDT binding affinity. The two principal African alleles are L1014F and L1014S.
Mutation ponctuelle sur le gène du canal sodium voltage-dépendant (Vgsc), réduisant l'affinité de liaison des pyréthroïdes et du DDT. Deux allèles majeurs prédominent en Afrique : L1014F (Ouest) et L1014S (Est).
A standardized semi-field facility designed to mimic human dwellings to evaluate vector deterrence, blood-feeding inhibition, and mortality induced by vector control tools.
Dispositif de terrain semi-naturel standardisé par l'OMS simulant des habitations réelles. Permet d'évaluer la dissuasion, l'effet répulsif, l'inhibition de gorgement et la mortalité des moustiquaires ou des pulvérisations.
Target-site resistance involves structural alterations in the insecticide receptor, while metabolic resistance is driven by enzymatic over-expression (P450s, GSTs, esterases).
La résistance de cible résulte d'une mutation structurelle du récepteur (ex: kdr, ace-1), tandis que la résistance métabolique résulte de la surproduction d'enzymes détoxifiantes (Cytochromes P450, GST, Estérases).
The proportion of female anophelines carrying Plasmodium sporozoites in their salivary glands, typically detected via circumsporozoite ELISA (CSP-ELISA) or PCR.
Proportion d'anophèles femelles dont les glandes salivaires contiennent des sporozoïtes de Plasmodium falciparum, généralement déterminée par test ELISA-CSP ou PCR.
11 — Testimonials & Endorsements
Endorsements and testimonials from research directors, institutional partners, health agencies, and supervised early-career researchers.
« Dr. Ahogni embodies the highest standard of West African entomological research. His rigor in conducting bioassays and his deep mastery of molecular resistance mechanisms have been decisive in shaping national vector control strategies. »
« Working with Idelphonse on multi-country LLIN evaluation trials has been an exceptional experience. His deep operational insights in experimental huts and commitment to data integrity set a benchmark for public health entomology. »
« Dr. Ahogni's technical expertise enabled the NMCP to seamlessly transition to next-generation dual-active and PBO nets backed by solid field evidence. »
« A passionate scientific mentor committed to African youth. His training masterclasses on larval sampling and WHO bioassay interpretation inspire an entire generation of medical entomologists. »
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Direct contact form, calendar booking, full contact details, and frequently asked questions are available on the dedicated page.
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