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Infectivity of Plasmodium gallinaceum Sporozoites from Oocysts
Author(s) -
DAHER VALQIRIA R.,
KRETTLI ANTONANA U.
Publication year - 1980
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1980.tb05394.x
Subject(s) - infectivity , plasmodium gallinaceum , biology , virology , inoculation , plasmodium (life cycle) , avian malaria , malaria , parasite hosting , salivary gland , gametocyte , microbiology and biotechnology , plasmodium falciparum , immunology , virus , biochemistry , world wide web , computer science
SYNOPSIS. Infectivity of Plasmodium gallinaceum (Brumpt) sporozoites isolated from midguts and salivary glands of experimentally infected Aedes fluviatilis (Lutz) was studied. The 2 populations were compared at 7, 8, and 9 days postisolation from mosquitoes, which were maintained at 27 C ± 1C and ∼75% relative humidity. Infectivity of the parasites was evaluated by the length of the prepatent period of the infection in 2‐week‐old chicks inoculated intramuscularly. Infection was caused by 7‐day‐old sporozoites from salivary glands, but not from midguts. Older sporozoites induced infection in all the inoculated chicks. The results suggested a somewhat higher infectivity of the 8‐ and 9‐day salivary‐gland parasites than of the oocyst sporozoites. However, unlike sporozoites from mammalian malaria, oocyst sporozoites from avian malaria were highly infective at this age.