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Implication of Anopheles funestus in malaria transmission in the city of Yaoundé, Cameroon

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Djamouko-Djonkam, Landre, Leslie Nkahe, Diane, Kopya, Edmond, Talipouo, Abdou, Sandra Ngadjeu, Carmene, Doumbe-Belisse, Patricia, Bamou, Roland, Awono-Ambene, Parfait, Tchuinkam, Timoléon, Wondji, Charles ORCID: https://orcid.org/0000-0003-0791-3673 and Antonio-Nkondjio, Christophe (2020) 'Implication of Anopheles funestus in malaria transmission in the city of Yaoundé, Cameroon'. Parasite-Journal De La Societe Francaise De Parasitologie, Vol 27, Issue 10.

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Abstract

The contribution of Anopheles funestus to malaria transmission in the urban environment is still not well documented. The present study assesses the implication of An. funestus in malaria transmission in two districts, Nsam and Mendong, in the city of Yaoundé. Adult mosquitoes were collected using Centers for Disease Control and Prevention miniature light traps (CDC-LT) and human landing catches from April 2017 to March 2018 and were identified morphologically to the species level. Those belonging to the Anopheles gambiae complex and to the Anopheles funestus group were further processed by PCR to identify members of each complex/group. Anopheline mosquitoes were analysed to determine their infection status using an enzyme-linked immunosorbent assay. Bioassays were conducted with 2–5-day-old female Anopheles funestus and An. gambiae s.l. to determine their susceptibility to permethrin, deltamethrin and dichlorodiphenyltrichloroethane (DDT). Six anopheline species were collected in the peri-urban district of Mendong: Anopheles gambiae, An. coluzzii, An. funestus, An. leesoni, An. ziemanni and An. marshallii; only four out of the six were recorded in Nsam. Of the two members of the Anopheles gambiae complex collected, An. coluzzii was the most prevalent. Anopheles coluzzii was the most abundant species in Nsam, while An. funestus was the most abundant in Mendong. Both Anopheles funestus and An. gambiae s.l. were found to be infected with human Plasmodium at both sites, and both were found to be resistant to DDT, permethrin, and deltamethrin. This study confirms the participation of An. funestus in malaria transmission in Yaoundé and highlights the need to also target this species for sustainable control of malaria transmission.

Item Type: Article
Subjects: QX Parasitology > Insects. Other Parasites > QX 515 Anopheles
WA Public Health > Health Problems of Special Population Groups > WA 395 Health in developing countries
WC Communicable Diseases > Tropical and Parasitic Diseases > WC 750 Malaria
Faculty: Department: Biological Sciences > Vector Biology Department
Digital Object Identifer (DOI): https://doi.org/10.1051/parasite/2020005
Depositing User: Stacy Murtagh
Date Deposited: 19 Mar 2020 13:18
Last Modified: 19 Mar 2020 13:18
URI: https://archive.lstmed.ac.uk/id/eprint/14014

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