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1
Jeffery GM, Eyles DE, 1955. Infectivity to mosquitoes of Plasmodium falciparum as related to gametocyte density and duration of infection. Am J Trop Med Hyg 4 :781–789.
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2
Collins WE, Jeffery GM, 1999. A retrospective examination of sporozoite- and trophozoite-induced infections with Plasmodium falciparum.Am J Trop Med Hyg 61 (Suppl):4–48.
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3
Earle WE, Perez M, 1932. Enumeration of parasites in the blood of malarial patients. J Lab Clin Med 17 :1124–1130.
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Jeffery GM, 1956. Blood meal volume in Anopheles quadrimaculatus, A. albimanus, and Aedes aegypti.Exp Parasitol 5 :371–375.
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Collins WE, Warren McW, Skinner JC, Richardson BB, Kearse TS, 1977. Infectivity of the Santa Lucia (El Salvador) strain of Plasmodium falciparum to different anophelines. J Parasitol 63 :57–61.
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A RETROSPECTIVE EXAMINATION OF MOSQUITO INFECTION ON HUMANS INFECTED WITH PLASMODIUM FALCIPARUM
A retrospective examination was made of archival data collected between 1940 and 1963 on the infection of mosquitoes with Plasmodium falciparum. Patients were undergoing malariatherapy for the treatment of neurosyphilis. A total of 913 lots of Anopheles quadrimaculatus and An. albimanus were fed on 173 patients. Mosquito infection continued to occur in a few patients beyond 200 days of patent parasitemia. The primary period of mosquito infection occurred during the first 20 days of gametocytemia. Of the 311 lots of mosquitoes fed during this period, 209 (67.20%) were infected, and of these, 163 had greater than 50% of the mosquitoes in the lots infected with at least one oocyst. During secondary periods of gametocytemia, 293 (78.76%) of 372 lots of mosquitoes were infected. The highest percentages of mosquitoes were infected from four days before to four days following peak gametocyte density. Mosquito infection rates were similar to those seen in studies with splenectomized Aotus monkeys experimentally infected with P. falciparum.