Transmission of Haemogregarina balli From Painted Turtles to Snapping Turtles Through the Leech Placobdella ornata

Six leeches (Placobdella ornata) were allowed to feed on a painted turtle (Chrysemys picta marginata) infected with Haemogregarina balli and subjected to a period of diapause before being allowed to feed on 2 laboratory-reared snapping turtles (Chelydra serpentina). Weekly examination of thin blood films revealed infections of the turtles at 130 days postfeeding. These observations provide support for broad host specificity of hemogregarine parasites of chelonians.

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