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2. Diversity and ecological niche model of malaria vector and non-vector mosquito species in Covè, Ouinhi, and Zangnanado, Southern Benin

Author

Adoha, Constantin Jésukèdè, Sovi, Arthur, Padonou, Germain Gil, Yovogan, Boulais, Akinro, Bruno, Accrombessi, Manfred, Dangbénon, Edouard, Sidick, Aboubakar, Ossè, Razaki, Tokponon, Tachémè Filémon, Odjo, Esdras Mahoutin, Koukpo, Come Z., Fassinou, Arsène, Missihoun, Antoine A., Sominanhouin, André, Messenger, Louisa A., Agboho, Prudenciène A., Akpodji, Serge, Ngufor, Corine, Cook, Jackie, Agbangla, Clément, Protopopoff, Natacha, Kulkarni, Manisha A., and Akogbéto, Martin C.

Published
2024
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3. Malaria prevalence and transmission in the Zakpota sub-district of central Benin: baseline characteristics for a community randomised trial of a new insecticide for indoor residual spraying

Author

Govoetchan, Renaud, Fongnikin, Augustin, Hueha, Corneille, Ahoga, Juniace, Boko, Chantal, Syme, Thomas, Issiakou, Riliwanou, Agbevo, Abel, Aikpon, Rock, Small, Graham, Snetselaar, Janneke, Ossè, Razaki, Tokponnon, Filemon, Padonou, Germain Gil, and Ngufor, Corine

Published
2024
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4. Bio-efficacy of Olyset® Plus, PermaNet® 3.0 and Interceptor® G2 on pyrethroid-resistant populations of Anopheles gambiae s.l. prior to the June 2023 net distribution campaign in Benin, West Africa

Author

Zoungbédji, David Mahouton, Padonou, Germain Gil, Sovi, Arthur, Konkon, Alphonse Keller, Salako, Albert Sourou, Azondékon, Roseric, Sidick, Aboubakar, Ahouandjinou, Juvénal Minassou, Towakinou, Linda, Ossè, Razaki, Aïkpon, Rock, Affoukou, Cyriaque, Baba-Moussa, Lamine, and Akogbéto, Martin

Published
2024
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7. The effect of next-generation, dual-active-ingredient, long-lasting insecticidal net deployment on insecticide resistance in malaria vectors in Benin: results of a 3-year, three-arm, cluster-randomised, controlled trial

Author

Sovi, Arthur, Adoha, Constantin J, Yovogan, Boulais, Cross, Chad L, Dee, Dominic P, Konkon, Alphonse Keller, Sidick, Aboubakar, Accrombessi, Manfred, Ahouandjinou, Minassou Juvenal, Ossè, Razaki, Dangbénon, Edouard, Towakinou, Linda, Agbangla, Clément, Padonou, Germain Gil, Churcher, Thomas S, Ngufor, Corine, Cook, Jackie, Protopopoff, Natacha, Akogbéto, Martin C, and Messenger, Louisa A

Published
2024
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8. Assessing the susceptibility and efficacy of traditional neurotoxic (pyrethroid) and new-generation insecticides (chlorfenapyr, clothianidin, and pyriproxyfen), on wild pyrethroid-resistant populations of Anopheles gambiae from southern Benin

Author

Zoungbédji, David Mahouton, Padonou, Germain Gil, Konkon, Alphonse Keller, Hougbe, Steve, Sagbohan, Hermann, Kpanou, Casimir, Salako, Albert Sourou, Ossè, Razaki, Aïkpon, Rock, Afoukou, Cyriaque, Sidick, Aboubakar, Akinro, Bruno, Chitou, Saïd, Gnanguénon, Virgile, Condo, Patrick, Hassani, Ahmed Saadani, Impoinvil, Daniel, and Akogbéto, Martin

Published
2023
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9. Field performance of three mosquito collection methods for assessing the entomological efficacy of dual-active ingredient long-lasting insecticidal nets

Author

Yovogan, Boulais, Adoha, Constantin J., Akinro, Bruno, Accrombessi, Manfred, Dangbénon, Edouard, Sidick, Aboubakar, Ossè, Razaki, Padonou, Gil G., Messenger, Louisa A., Fassinou, Arsène, Sagbohan, Hermann W., Agbangla, Clément, Djènontin, Armel, Odjo, Esdras M., Ngufor, Corine, Cook, Jackie, Protopopoff, Natacha, Sovi, Arthur, and Akogbéto, Martin C.

Published
2023
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10. Efficacy of pyriproxyfen-pyrethroid long-lasting insecticidal nets (LLINs) and chlorfenapyr-pyrethroid LLINs compared with pyrethroid-only LLINs for malaria control in Benin: a cluster-randomised, superiority trial

Author

Accrombessi, Manfred, Cook, Jackie, Dangbenon, Edouard, Yovogan, Boulais, Akpovi, Hilaire, Sovi, Arthur, Adoha, Constantin, Assongba, Landry, Sidick, Aboubacar, Akinro, Bruno, Ossè, Razaki, Tokponnon, Filémon, Aïkpon, Rock, Ogouyemi-Hounto, Aurore, Padonou, Germain Gil, Kleinschmidt, Immo, Messenger, Louisa A, Rowland, Mark, Ngufor, Corine, Protopopoff, Natacha, and Akogbeto, Martin C

Published
2023
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11. The evolution of the genetic structure of populations of two species of the Anopheles gambiae s.l. complex using the Kdr gene before and after indoor residual spraying in some agroecological zones of Benin (West Africa)

Author

Koukpo, Come Z., primary, Fassinou, Arsène Jacques Y. H., additional, Ossè, Razaki A., additional, Tokponon, Filemon, additional, Agossa, Fiacre R., additional, Padonou, Germain Gil, additional, Govoetchan, Renaud, additional, Aboubakar, Sidick, additional, Yovogan, Boulais, additional, Odjo, Esdras M., additional, Akpodji, Serge, additional, Adoha, Constantin J., additional, Baba-Moussa, Lamine Saïd, additional, Adégnika, Ayola Akim, additional, Akogbeto, Martin C., additional, and Sezonlin, Michel, additional

Published
2024
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13. Insecticide Resistance in Aedes aegypti Mosquitoes: Possible Detection of kdr F1534C, S989P, and V1016G Triple Mutation in Benin, West Africa.

Author

Tokponnon, Tatchémè Filémon, Ossè, Razaki, Zoulkifilou, Sare Dabou, Amos, Gbenouga, Festus, Houessinon, Idayath, Gounou, Sidick, Aboubakar, Messenger, Louisa A., and Akogbeto, Martin

Subjects
*INSECTICIDES, *AEDES aegypti, *MOSQUITOES, *GENETIC mutation, *SODIUM channels, *DELTAMETHRIN
Abstract

Simple Summary: The effectiveness of chemical control of Aedes (Ae.) aegypti is threatened by the increasing frequency of insecticide resistance. This study aimed to determine, in two cities of Benin, the insecticide resistance profiles of Ae. aegypti, the presence of detoxification enzymes, and the frequency of kdr mutations. Ae. aegypti eggs were collected in the study areas using gravid Aedes traps (GATs). Centers for Disease Control and Prevention (CDC) bottle bioassays were used to assess the susceptibility status of adult female Ae. aegypti, followed by kdr screening using allele-specific PCR. The activity levels of key detoxification enzymes were measured among individual, unexposed, and un-engorged adult female Ae. aegypti. In both study sites, Ae. aegypti was resistant to the pyrethroids deltamethrin and permethrin, but susceptible to the carbamate bendiocarb. Significant over-expression of glutathione-S-transferases and under-expression of α and β esterases were observed in these vector populations. Three kdr mutations (F1534C, S989P, and V1016G) were possibly present in resistant Ae. aegypti at high frequencies, including the simultaneous occurrence of all three mutations in individual mosquitoes. Study findings will be used to inform prospective vector control strategies in Benin. Epidemics of arboviruses in general, and dengue fever in particular, are an increasing threat in areas where Aedes (Ae.) aegypti is present. The effectiveness of chemical control of Ae. aegypti is jeopardized by the increasing frequency of insecticide resistance. The aim of this study was to determine the susceptibility status of Ae. aegypti to public health insecticides and assess the underlying mechanisms driving insecticide resistance. Ae. aegypti eggs were collected in two study sites in the vicinity of houses for two weeks using gravid Aedes traps (GATs). After rearing the mosquitoes to adulthood, female Ae. aegypti were exposed to diagnostic doses of permethrin, deltamethrin and bendiocarb, using Centers for Disease Control and Prevention (CDC) bottle bioassays. Unexposed, un-engorged female Ae. aegypti were tested individually for mixed-function oxidase (MFO), glutathione-S-transferase (GST) and α and β esterase activities. Finally, allele-specific PCR (AS-PCR) was used to detect possible kdr mutations (F1534C, S989P, and V1016G) in the voltage-gated sodium channel gene in insecticide-exposed Ae. aegypti. Most traps were oviposition positive; 93.2% and 97% of traps contained Ae. aegypti eggs in the 10ème arrondissement of Cotonou and in Godomey-Togoudo, respectively. Insecticide bioassays detected resistance to permethrin and deltamethrin in both study sites and complete susceptibility to bendiocarb. By comparison to the insecticide-susceptible Rockefeller strain, field Ae. aegypti populations had significantly higher levels of GSTs and significantly lower levels of α and β esterases; there was no significant difference between levels of MFOs. AS-PCR genotyping revealed the possible presence of 3 kdr mutations (F1534C, S989P, and V1016G) at high frequencies; 80.9% (228/282) of the Ae. aegypti tested had at least 1 mutation, while the simultaneous presence of all 3 kdr mutations was identified in 13 resistant individuals. Study findings demonstrated phenotypic pyrethroid resistance, the over-expression of key detoxification enzymes, and the possible presence of several kdr mutations in Ae. aegypti populations, emphasizing the urgent need to implement vector control strategies targeting arbovirus vector species in Benin. [ABSTRACT FROM AUTHOR]

Published
2024
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17. Assessing the susceptibility and efficacy of three public health, insecticides, chlorfenapyr, clothianidin, and pyriproxyfen, on wild pyrethroid-resistant populations of Anopheles gambiae s.l. from southern Benin

Author

Zoungbédji, David Mahouton, primary, Padonou, Germain Gil, additional, Konkon, Alphonse Keller, additional, Steve, Hougbe, additional, Sagbohan, Hermann, additional, Kpanou, Casimir, additional, Salako, Albert Sourou, additional, Ossè, Razaki, additional, Aïkpon, Rock, additional, Afoukou, Cyriaque, additional, Sidick, Aboubakar, additional, Akinro, Bruno, additional, Chitou, Saïd, additional, Gnanguénon, Virgile, additional, Condo, Patrick, additional, Hassani, Ahmed Saadani, additional, Impoinvil, Daniel, additional, and Akogbéto, Martin, additional

Published
2023
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21. Evidence of Transmission of Plasmodium vivax 210 and Plasmodium vivax 247 by Anopheles gambiae and An. coluzzii, Major Malaria Vectors in Benin/West Africa

Author

Ossè, Razaki A., primary, Tokponnon, Filémon, additional, Padonou, Germain Gil, additional, Glitho, Mariette E., additional, Sidick, Aboubakar, additional, Fassinou, Arsène, additional, Koukpo, Come Z., additional, Akinro, Bruno, additional, Sovi, Arthur, additional, and Akogbéto, Martin, additional

Published
2023
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22. Entomological Characteristics of Malaria Transmission across Benin: An Essential Element for Improved Deployment of Vector Control Interventions

Author

Tokponnon, Tatchémè Filémon, primary, Ossè, Razaki, additional, Padonou, Germain Gil, additional, Affoukou, Cyriaque Dossou, additional, Sidick, Aboubakar, additional, Sewade, Wilfried, additional, Fassinou, Arsène, additional, Koukpo, Côme Z., additional, Akinro, Bruno, additional, Messenger, Louisa A., additional, Okê, Mariam, additional, Tchévoédé, Alexis, additional, Ogouyemi-Hounto, Aurore, additional, Gazard, Dorothée Kinde, additional, and Akogbeto, Martin, additional

Published
2023
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27. Susceptibility of Anopheles gambiae sensu lato to different insecticide classes and mechanisms involved in the South-North transect of Benin

Author

Kpanou, Casimir Dossou, primary, Sagbohan, Hermann W, additional, Padonou, Germain G, additional, Ossè, Razaki, additional, Salako, Albert Sourou, additional, Fassinou, Arsène Jacques, additional, Sovi, Arthur, additional, Yovogan, Boulais, additional, Adoha, Constantin, additional, Sominahouin, André, additional, Ahogni, Idelphonse, additional, Chitou, Saïd, additional, Sidick, Aboubakar, additional, and Akogbéto, Martin, additional

Published
2021
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28. Pre-intervention characteristics of the mosquito species in Benin in preparation for a randomized controlled trial assessing the efficacy of dual active-ingredient long-lasting insecticidal nets for controlling insecticide-resistant malaria vectors

Author

Yovogan, Boulais, primary, Sovi, Arthur, additional, Padonou, Gil G., additional, Adoha, Constantin J., additional, Akinro, Bruno, additional, Chitou, Saïd, additional, Accrombessi, Manfred, additional, Dangbénon, Edouard, additional, Akpovi, Hilaire, additional, Messenger, Louisa A., additional, Ossè, Razaki, additional, Hounto, Aurore Ogouyemi, additional, Cook, Jackie, additional, Kleinschmidt, Immo, additional, Ngufor, Corine, additional, Rowland, Mark, additional, Protopopoff, Natacha, additional, and Akogbéto, Martin C., additional

Published
2021
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29. Bio-efficacy of Olyset®Plus, PermaNet®3.0 and Interceptor®G2 on pyrethroid-resistant populations of Anopheles gambiaes.l. prior to the June 2023 net distribution campaign in Benin, West Africa

Author

Zoungbédji, David Mahouton, Padonou, Germain Gil, Sovi, Arthur, Konkon, Alphonse Keller, Salako, Albert Sourou, Azondékon, Roseric, Sidick, Aboubakar, Ahouandjinou, Juvénal Minassou, Towakinou, Linda, Ossè, Razaki, Aïkpon, Rock, Affoukou, Cyriaque, Baba-Moussa, Lamine, and Akogbéto, Martin

Abstract

Background: This study investigates the effectiveness of new-generation mosquito nets, like Olyset®Plus and PermaNet®3.0, and dual-action nets such as Interceptor®G2, against pyrethroid-resistant Anopheles gambiaemosquitoes following the 2023 mass distribution of long-lasting insecticidal nets in Benin. Methods: We tested wild mosquito populations from six communes in Benin against various pyrethroid (permethrin 0.75%, alphacypermethrin 0.05%, and deltamethrin 0.05%) using WHO tube tests. Additionally, we exposed mosquitoes to chlorfenapyr 100 µg/ml using the CDC bottle bioassay method. A subset of mosquitoes underwent biochemical and PCR tests to check the overexpression of metabolic enzymes and the Kdr L1014F mutation. We evaluated the effectiveness of Olyset®Plus, PermaNet®3.0, and Interceptor®G2 nets using cone and tunnel tests on both laboratory and field populations of An. gambiae. Results: Overall, the highest mortality rate was 60% with pyrethroid and 98 to100% with chlorfenapyr. In cone tests, all three types of nets induced mortality rates above 80% in the susceptible laboratory strain of An. gambiae. Notably, Olyset®Plus showed the highest mortality rates for pyrethroid-resistant mosquitoes in cone tests, ranging from 81.03% (95% CI: 68.59–90.13) in Djougou to 96.08% (95% CI: 86.54–99.52) in Akpro-Missérété. PermaNet®3.0 had variable rates, from 42.5% (95% CI: 27.04–59.11) in Djougou to 58.54% (95% CI: 42.11–73.68) in Porto-Novo. However, revealed good results for Interceptor®G2, with 94% (95% CI: 87.40–97.77) mortality and 89.09% blood sampling inhibition in local populations of An. gambiae. In comparison, Interceptor®had lower rates of 17% (95% CI: 10.23–25.82) and 60%, respectively. Conclusion: These results suggest that tunnel tests are effective for evaluating dual-active ingredient nets. Additionally, Interceptor®G2 and PBO nets like Olyset®Plus could be considered as alternatives against pyrethroid-resistant mosquitoes.

Published
2024
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30. Evaluation of the efficacy of bendiocarb in indoor residual spraying against pyrethroid resistant malaria vectors in Benin: results of the third campaign

Author

Ossè Razaki, Aikpon Rock, Padonou Gil, Oussou Olivier, Yadouléton Anges, and Akogbéto Martin

Subjects
An.gambiae, EIR, Longevity, IRS, Bendiocarb, Resistance, Benin, Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background Since 2008, the National Malaria Control Program (NMCP) has been engaged in the implementation of indoor residual spraying (IRS) in Benin. The first and second round was a success with a drastic decrease of malaria transmission in areas under IRS. We present here the results of the third round. The purpose of this study was to compare the results of the third round of IRS to those achieved during the first two rounds. A second success of IRS will enable the Government of Benin to extend the strategy to other areas. Methods Mosquito collections were carried out in the department of Ouémé where the homes of four districts were treated with bendiocarb. In these districts, more than 350 000 inhabitants were protected by IRS. A fifth untreated district served as control. In the five districts, mosquito collections were organized to follow the dynamics of malaria transmission and possible changes in the behavior of mosquitoes. Results A significant reduction in human biting rate was recorded after the third round of IRS, specifically in Adjohoun (89.78%), Dangbo (56.8%) and Missérété (93.22%) where an inhabitant received less than 2 bites of An. gambiae per night. During this same time, the entomological inoculation rate (EIR) declined dramatically in all areas under intervention (74.26% reduction). We also noted a significant reduction in longevity, the blood feeding rate of the vectors and an increase in exophily induced by bendiocarb on An. gambiae and Mansonia spp. Conclusion The present study showed, once again, the effectiveness of bendiocarb on anopheles populations resistant to pyrethroids. This product can be recommended in combination with other insecticides for the management of vector resistance to insecticides.

Published
2012
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31. Population Dynamics of Anopheles gambiae s.l. and Culex quinquefasciatus in Rural and Urban Settings Before an Indoor Residual Spraying Campaign in Northern Benin

Author

Salako, Albert Sourou, primary, Ossè, Razaki, additional, Padonou, Gil G., additional, Dagnon, Fortuné, additional, Aïkpon, Rock, additional, Kpanou, Casimir, additional, Sagbohan, Hermann, additional, Sovi, Arthur, additional, Sèzonlin, Michel, additional, and Akogbeto, Martin C., additional

Published
2019
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32. Culicidae diversity, malaria transmission and insecticide resistance alleles in malaria vectors in Ouidah-Kpomasse-Tori district from Benin (West Africa): A pre-intervention study

Author

Djènontin Armel, Bio-Bangana Sahabi, Moiroux Nicolas, Henry Marie-Claire, Bousari Olayidé, Chabi Joseph, Ossè Razaki, Koudénoukpo Sébastien, Corbel Vincent, Akogbéto Martin, and Chandre Fabrice

Subjects
Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background To implement an Insecticide Resistance Management (IRM) strategy through a randomized controlled trial (phase III), 28 villages were selected in southern Benin. No recent entomological data being available in these villages, entomological surveys were performed between October 2007 and May 2008, before vector control strategies implementation, to establish baseline data. Methods Mosquitoes were sampled by human landing collection (16 person-nights per village per survey per village) during 5 surveys. Mosquitoes were identified morphologically and by molecular methods. The Plasmodium falciparum circumsporozoïte indexes were measured by ELISA, and the entomological inoculation rates (EIRs) were calculated. Molecular detection of pyrethroid knock down resistance (Kdr) and of insensitive acetylcholinesterase were performed. Results 44,693 mosquitoes belonging to 28 different species were caught from October 2007 to May 2008. Among mosquitoes caught, 318 were An. gambiae s.s., 2 were An. nili, 568 were An. funestus s.s., and one individual was An. leesoni. EIR was 2.05 ± 1.28 infective bites per human per 100 nights on average, of which 0.67 ± 0.60 were from An. funestus and 1.38 ± 0.94 infective bites were from An. gambiae. Important variations were noted between villages considering mosquito density and malaria transmission indicating a spatial heterogeneity in the study area. The kdr allelic frequency was 28.86% in An. gambiae s.s. on average and significantly increases from October 2007 (10.26%) to May 2008 (33.87%) in M molecular form of An. gambiae s.s. Ace 1 mutation was found in S molecular of An. gambiae s.s at a low frequency (< 1%). Conclusion This study updates information on mosquito diversity and malaria risk in rural villages from south Benin. It showed a high spatial heterogeneity in mosquito distribution and malaria transmission and underlines the need of further investigations of biological, ecological, and behavioral traits of malaria vectors species and forms. This study is a necessary prerequisite to cartography malaria risk and to improve vector control operations in southern Benin.

Published
2010
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35. Genetic structure of Anopheles gambiae s.spopulations following the use of insecticides on several consecutive years in southern Benin

Author

Fassinou, Arsène, Koukpo, Come, Ossè, Razaki, Agossa, Fiacre, Assogba, Benoit, Sidick, Aboubakar, Sèwadé, Wilfrid, Akogbéto, Martin, and Sèzonlin, Michel

Abstract

Several studies have reported the strong resistance of Anopheles gambiae s.l.complex species to pyrethroids. The voltage-dependent sodium channel (Vgsc) gene is the main target of pyrethroids and DDT. In Benin, the frequency of the resistant allele (L1014F) of this gene varies along the north-south transect. Monitoring the evolution of resistance is necessary to better appreciate the genetic structure of vector populations in localities subject to the intensive use of chemicals associated with other control initiatives. The purpose of this study was to map the distribution of pyrethroid insecticide resistance alleles of the Kdrgene in malaria vectors in different regions and ecological facies in order to identify the evolutionary forces that might be the basis of anopheline population dynamics. The characterization of Anopheles gambiae s.l.populations and resistance mechanisms were performed using adult mosquitoes obtained from larvae collected in the four agroecological zones in southern Benin. Genomic DNA extraction was performed on whole mosquitoes. The extracted genomic DNA from them were used for the molecular identification of species in Anopheles gambiae s.l.complex and the identification of genotypes related to pyrethroid resistance as the Kdrgene amino acid position 1014 in sodium channel. Molecular speciation and genotyping of Kdrresistant alleles (1014) were done using PCR. Genepop software version 4.2 was used to calculate allelic and genotypic frequencies in each agroecological zone. The pvalue of the allelic frequency was determined using the binomial test function in R version 3.3.3. The Hardy-Weinberg equilibrium was checked for each population with Genetics software version 1.3.8.1. The observed heterozygosity and the expected heterozygosity as well as the fixation index and genetic differentiation index within and between populations were calculated using Genepop software version 4.2. During the study period, Anopheles coluzziiwas the major species in all agroecological zones while Anopheles gambiaewas scarcely represented. Regardless of the species, resistant homozygote individuals (L1014F/L1014F) were dominant in all agroecological zones, showing a strong selection of the resistant allele (L1014F). All populations showed a deficit of heterozygosity. No genetic differentiation was observed between the different populations of the two species. For Anopheles coluzzii, there was a small differentiation among the populations of the central cotton and bar-lands zones. The genetic differentiation was modest among the population of the fisheries zone (Fst= 0.1295). The genetic differentiation was very high in the population of Anopheles gambiaeof the bar-lands zone (Fst= 0.2408). This study revealed that the use of insecticides in Benin for years has altered the genetic structure of Anopheles gambiae s.s.populations in all agroecological zones of southern Benin. It would be desirable to orientate vector control efforts towards the use of insecticides other than pyrethroids and DDT or combinations of insecticides with different modes of action.

Published
2019
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37. Malaria vectors resistance to insecticides in Benin: current trends and mechanisms involved

Author

Gnanguenon, Virgile, primary, Agossa, Fiacre R, additional, Badirou, Kefilath, additional, Govoetchan, Renaud, additional, Anagonou, Rodrigue, additional, Oke-Agbo, Fredéric, additional, Azondekon, Roseric, additional, AgbanrinYoussouf, Ramziath, additional, Attolou, Roseline, additional, Tokponnon, Filemon T, additional, Aïkpon, Rock, additional, Ossè, Razaki, additional, and Akogbeto, Martin C, additional

Published
2015
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38. Application of Polovodova’s method for the determination of physiological age and relationship between the level of parity and infectivity of Plasmodium falciparum in Anopheles gambiae s.s, south-eastern Benin

Author

Anagonou, Rodrigue, primary, Agossa, Fiacre, additional, Azondékon, Roseric, additional, Agbogan, Marc, additional, Oké-Agbo, Fréderic, additional, Gnanguenon, Virgile, additional, Badirou, Kèfilath, additional, Agbanrin-Youssouf, Ramziath, additional, Attolou, Roseline, additional, Padonou, Gil, additional, Sovi, Arthur, additional, Ossè, Razaki, additional, and Akogbéto, Martin, additional

Published
2015
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40. Transmission patterns of Plasmodium falciparum by Anopheles gambiae in Benin

Author

Gnanguenon, Virgile, primary, Govoetchan, Renaud, additional, Agossa, Fiacre R, additional, Ossè, Razaki, additional, Oke-Agbo, Frédéric, additional, Azondekon, Roseric, additional, Sovi, Arthur, additional, Attolou, Roseline, additional, Badirou, Kefilath, additional, Tokponnon, Filémon T, additional, Padonou, Gil G, additional, and Akogbeto, Martin C, additional

Published
2014
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41. Impact of long-lasting, insecticidal nets on anaemia and prevalence of Plasmodium falciparum among children under five years in areas with highly resistant malaria vectors

Author

Tokponnon, Filémon T, primary, Ogouyémi, Aurore Hounto, additional, Sissinto, Yolande, additional, Sovi, Arthur, additional, Gnanguenon, Virgile, additional, Cornélie, Sylvie, additional, Adéothy, Adicath Adéola, additional, Ossè, Razaki, additional, Wakpo, Abel, additional, Gbénou, Dina, additional, Oke, Mariam, additional, Kinde-Gazard, Dorothée, additional, Kleinschmidt, Immo, additional, Akogbeto, Martin C, additional, and Massougbodji, Achille, additional

Published
2014
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42. Dry season refugia for anopheline larvae and mapping of the seasonal distribution in mosquito larval habitats in Kandi, northeastern Benin

Author

Govoetchan, Renaud, primary, Gnanguènon, Virgile, additional, Ogouwalé, Euloge, additional, Oké-Agbo, Frédéric, additional, Azondékon, Roseric, additional, Sovi, Arthur, additional, Attolou, Roseline, additional, Badirou, Kefilath, additional, Youssouf, Ramziyath, additional, Ossè, Razaki, additional, and Akogbéto, Martin, additional

Published
2014
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44. Impact of land-use on malaria transmission in the Plateau region, southeastern Benin

Author

Sovi, Arthur, primary, Govoétchan, Renaud, additional, Tokponnon, Filémon, additional, Hounkonnou, Hermine, additional, Aïkpon, Rock, additional, Agossa, Fiacre, additional, Gnanguenon, Virgile, additional, Salako, Albert S, additional, Agossou, Christian, additional, Ossè, Razaki, additional, Okè, Mariam, additional, Gbénou, Dina, additional, Massougbodji, Achille, additional, and Akogbéto, Martin, additional

Published
2013
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49. Comparison of the standard WHO susceptibility tests and the CDC bottle bioassay for the determination of insecticide susceptibility in malaria vectors and their correlation with biochemical and molecular biology assays in Benin, West Africa

Author

Aïzoun, Nazaire, primary, Ossè, Razaki, additional, Azondekon, Roseric, additional, Alia, Roland, additional, Oussou, Olivier, additional, Gnanguenon, Virgile, additional, Aikpon, Rock, additional, Padonou, Gil Germain, additional, and Akogbéto, Martin, additional

Published
2013
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50. A shift from Indoor Residual Spraying (IRS) with bendiocarb to Long-Lasting Insecticidal (mosquito) Nets (LLINs) associated with changes in malaria transmission indicators in pyrethroid resistance areas in Benin

Author

Ossè, Razaki A, primary, Aïkpon, Rock, additional, Gbédjissi, Ghélus Louis, additional, Gnanguenon, Virgile, additional, Sèzonlin, Michel, additional, Govoétchan, Renaud, additional, Sovi, Arthur, additional, Oussou, Olivier, additional, Oké-Agbo, Frédéric, additional, and Akogbéto, Martin, additional

Published
2013
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