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Plasmodium forresteri is a parasite of the genus Plasmodium.
Like all Plasmodium species P. forresteri has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds.
| Plasmodium forresteri | ||||||||||||||
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| Plasmodium forresteri |
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Description
The parasite was first described by Telford et al in 1979. [1]
The gametocytes are elongate. Their mean dimensions vary between host species and lie between 11.5 - 13.1 (length) x 2.0 - 2.4 (breadth) micrometres. One or both margins are irregular and often crenulate. Gametocytes rarely fill the space between the erythrocyte nucleus and margin.
Schizonts occur in mature or nearly mature erythrocytes. Their mean dimensions vary between host species and range from 3.7 to 4.8 x 2.5 to 3.4 micrometres.
Each schizont produces 2-6 merozoites most commonly arranged in fan or cruciform configuration.
Geographical occurrence
This organism is found in Florida and southern Georgia, USA.
Clinical features and host pathology
This organism naturally infects the following species:
Eastern screech-owls (Otus asio)
Great horned owls (Bubo virginianus)
Barred owls (Strix varia)
Bald eagles (Haliaeetus leucocephalus)
Red-shouldered hawks (Buteo lineatus)
Broad-winged hawks (Buteo platypterus)
Red-tailed hawks (Buteo jamaicensis)
Experimental infections have been established in the following species:
Japanese quail (Coturnix japonica)
Pekin ducks (Anas platyrhynchos)
The only currently known mosquito vector is Culex restuans.
References
- ^ Telford S.R. Jr., Nayar J.K, Foster G.W., Knight J.W. (1997) Plasmodium forresteri n. sp., from raptors in Florida and southern Georgia: its distinction from Plasmodium elongatum morphologically within and among host species and by vector susceptibility. J Parasitol. 83(5):932-937
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- This page was last modified on 6 August 2008, at 22:45.
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