Trypanosoma cruzi -- the vector-parasite paradox
Trypanosoma cruzi and the majority of its insect vectors (Hemiptera, Reduviidae, Triatominae) are confined to the Americas. But while recent molecular studies indicate a relatively ancient origin for the parasite (~65 million years ago) there is increasing evidence that the blood-sucking triatomine vectors have evolved comparatively recently (<5 mya). This review examines the evidence for these ideas, and attempts to reconcile the apparent paradox by suggesting that marsupial opossums (Didelphidae) may have played a role, not just as original reservoir hosts, but also as original vectors of the parasite.
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| Format: | Digital revista |
| Language: | English |
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Instituto Oswaldo Cruz, Ministério da Saúde
2000
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000400016 |
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