Beyond the entomological inoculation rate: characterizing multiple blood feeding behavior and Plasmodium falciparum multiplicity of infection in Anopheles mosquitoes in northern Zambia

详细信息    查看全文

• 作者：Smita Das ; Mbanga Muleba ; Jennifer C. Stevenson ; Julia C. Pringle…
• 关键词：Malaria ; Anopheles mosquitoes ; Entomological inoculation rate ; Multiplicity of infection ; Zambia ; ICEMR
• 刊名：Parasites & Vectors
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：10
• 期：1
• 全文大小：1570KB
• 刊物主题：Parasitology; Entomology; Tropical Medicine; Infectious Diseases; Veterinary Medicine/Veterinary Science; Virology;
• 出版者：BioMed Central
• ISSN：1756-3305
• 卷排序：10

文摘

BackgroundA commonly used measure of malaria transmission intensity is the entomological inoculation rate (EIR), defined as the product of the human biting rate (HBR) and sporozoite infection rate (SIR). The EIR excludes molecular parameters that may influence vector control and surveillance strategies. The purpose of this study was to investigate Anopheles multiple blood feeding behavior (MBF) and Plasmodium falciparum multiplicity of infection (MOI) within the mosquito host in Nchelenge District, northern Zambia. Mosquitoes were collected from light traps and pyrethroid spray catch in Nchelenge in the 2013 wet season. All anophelines were tested for blood meal host, P. falciparum, and MOI using PCR. Circumsporozoite (CSP) ELISA and microsatellite analysis were performed to detect parasites in the mosquito and MBF, respectively. Statistical analyses used regression models to assess MBF and MOI and exact binomial test for human sex bias. Both MBF and MOI can enhance our understanding of malaria transmission dynamics beyond what is currently understood through conventional EIR estimates alone.