Abstract
Summary
Intraembryonic inoculation of duck embryos with the 3T strain of P. cathemerium causes reproducible fatal infections with a high level of parasitemia 6-11 days after inoculation. Splenomegaly occurs in these infected embryos. Intraembryonic inoculation of P. lophuræ produces much more variable results. Infection requires a considerably longer period to develop. This may depend upon the maturity of the erythrocyte in the embryo. Both species of plasmodia can develop in the embryo at either 37°C or 40°C. Duck embryos can survive the intraembryonic inoculation of ground organs of malaria- infected mosquitoes if they are incubated at 40°C.
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