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High Plasmodium Infection Rate and Reduced Bed Net Efficacy in Multiple Insecticide-Resistant Malaria Vectors in Kinshasa, Democratic Republic of Congo

Riveron, Jacob ORCID: https://orcid.org/0000-0002-5395-767X, Watsenga, Francis, Irving, Helen, Irish, Seth R and Wondji, Charles ORCID: https://orcid.org/0000-0003-0791-3673 (2018) 'High Plasmodium Infection Rate and Reduced Bed Net Efficacy in Multiple Insecticide-Resistant Malaria Vectors in Kinshasa, Democratic Republic of Congo'. Journal of Infectious Disease, Vol 217, Issue 2, pp. 320-328.

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Abstract

Accounting for approximately 11% of all malaria cases, the Democratic Republic of Congo (DRC) is central to malaria elimination efforts. To support vector control interventions in DRC, we characterized the dynamics and impact of insecticide resistance in major malaria vectors in 2015. High Plasmodium infection rates were recorded in An. gambiae and An. funestus with P. falciparum predominant over P. malariae. Both mosquito species exhibited high and multiple resistance to major public health insecticide classes. The extremely high resistance to permethrin and DDT in An. gambiae (low mortalities after 6 hours exposure) is worrisome, and is supported by a reduced insecticidal effect of bednets against both mosquito species in laboratory tests. Metabolic and target site insensitivity mechanisms are driving this resistance in An. gambiae but only the former was observed in An. funestus. These findings highlight the urgent need for actions to prolong the effectiveness of insecticide-based interventions in DRC.

Item Type: Article
Subjects: QX Parasitology > Protozoa > QX 135 Plasmodia
QX Parasitology > Insects. Other Parasites > QX 510 Mosquitoes
QX Parasitology > Insects. Other Parasites > QX 600 Insect control. Tick control
WA Public Health > WA 30 Socioeconomic factors in public health (General)
WC Communicable Diseases > Tropical and Parasitic Diseases > WC 750 Malaria
Faculty: Department: Biological Sciences > Vector Biology Department
Digital Object Identifer (DOI): https://doi.org/10.1093/infdis/jix570
SWORD Depositor: JISC Pubrouter
Depositing User: JISC Pubrouter
Date Deposited: 13 Nov 2017 16:23
Last Modified: 14 Oct 2019 08:54
URI: https://archive.lstmed.ac.uk/id/eprint/7813

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