Assessing Survival Rates of Anopheles farauti (Diptera: Culicidae) from Papua New Guinea

10.2307/4393 ◽  
1985 ◽  
Vol 54 (3) ◽  
pp. 1003 ◽  
Author(s):  
J. D. Charlwood ◽  
M. H. Birley ◽  
H. Dagoro ◽  
R. Paru ◽  
P. R. Holmes
2020 ◽  
Author(s):  
Lincoln Timinao ◽  
Rebecca Vinit ◽  
Michelle Katusele ◽  
Tamarah Koleala ◽  
Elma Nate ◽  
...  

AbstractDespite being a weak point in their life cycle, transmission of Plasmodium parasites from humans to mosquitoes is an understudied field of research. Direct membrane feeding assays (DMFA) are an important tool, allowing detailed mechanistic malaria transmission studies from humans to mosquitoes. Especially for Plasmodium vivax, which cannot be cultured long-term under laboratory conditions, implementation of DMFAs requires proximity to P. vivax endemic areas. In the present study, we investigated the infectivity of symptomatic Plasmodium infections to Anopheles farauti colony mosquitoes in Papua New Guinea (PNG), a country with one of the highest rates of Plasmodium vivax in the world. A total of 182 DMFAs were performed with venous blood collected from symptomatic malaria patients positive by rapid diagnostic test (RDT). DMFAs resulted in mosquito infection in 20.9% (38/182) of cases. The parasite species in the blood feeds were determined retrospectively by expert light microscopy and quantitative real-time qPCR. Based on light microscopy, 9.2% of P. falciparum and 42% of P. vivax human infections resulted in mosquito infections. Infections containing gametocytes detected by microscopy led to mosquito infections in 58.8% of P. vivax and 8.7% of P. falciparum infections. Based on qPCR, 10% of P. falciparum and 43.6% of P. vivax lead to a successful mosquito infection. Venous blood samples from symptomatic P. vivax patients were more infectious to An. farauti mosquitoes in DMFAs compared to P. falciparum infected patients. The capacity to perform DMFAs in a high-burden P. vivax setting creates a unique opportunity to address critical gaps in our understanding of P. vivax human-tomosquito transmission.


Author(s):  
Lincoln Timinao ◽  
Rebecca Vinit ◽  
Michelle Katusele ◽  
Tamarah Koleala ◽  
Elma Nate ◽  
...  

Plasmodium transmission from humans to mosquitoes is an understudied bottleneck in the transmission of malaria. Direct membrane feeding assays (DMFA) allow detailed malaria transmission studies from humans to mosquitoes. Especially for Plasmodium vivax, which cannot be cultured long-term under laboratory conditions, implementation of DMFAs requires proximity to P. vivax endemic areas. In this study, we investigated the infectivity of symptomatic Plasmodium infections to Anopheles farauti colony mosquitoes in Papua New Guinea (PNG). A total of 182 DMFAs were performed with venous blood collected from rapid diagnostic test (RDT) positive symptomatic malaria patients and subsequently analysed by light microscopy and quantitative real time polymerase chain reaction (qPCR). DMFAs resulted in mosquito infections in 20.9% (38/182) of cases. By light microscopy and qPCR, 10 – 11% of P. falciparum and 32 – 44% of P. vivax positive individuals infected An. farauti. Fifty-eight percent of P. vivax and 15% of P. falciparum gametocytaemic infections infected An farauti.


2002 ◽  
Vol 16 (1) ◽  
pp. 116-119 ◽  
Author(s):  
M. J. Bockarie ◽  
L. Tavul ◽  
W. Kastens ◽  
E. Michael ◽  
J. W. Kazura

1988 ◽  
Vol 2 (2) ◽  
pp. 101-108 ◽  
Author(s):  
J. D. CHARLWOOD ◽  
P. M. GRAVES ◽  
T. F. de C. MARSHALL

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Cielo J. Pasay ◽  
Laith Yakob ◽  
Hannah R. Meredith ◽  
Romal Stewart ◽  
Paul C. Mills ◽  
...  

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