Haematozoan parasites of the lizard Ameiva ameiva (Teiidae) from Amazonian Brazil: a preliminary note
Mem. Inst. Oswaldo Cruz
; 98(8): 1067-1070, Dec. 2003. ilus
Article
in English
| LILACS
| ID: lil-355745
Responsible library:
BR1.1
RESUMO
Three different haematozoan parasites are described in the blood of the teiid lizard Ameiva ameiva Linn. from North Brazil one in the monocytes and the other two in erythrocytes. The leucocytic parasite is probably a species of Lainsonia Landau, 1973 (Lankesterellidae) as suggested by the presence of sporogonic stages in the internal organs, morphology of the blood forms (sporozoites), and their survival and accumulation in macrophages of the liver. One of the erythrocytic parasites produces encapsulated, stain-resistant forms in the peripheral blood, very similar to gametocytes of Hemolivia Petit et al., 1990. The other is morphologically very different and characteristically adheres to the host-cell nucleus. None of the parasites underwent development in the mosquitoes Culex quinquefasciatus and Aedes aegypti and their behaviour in other haematophagous hosts is under investigation. Mixed infections of the parasites commonly occur and this often creates difficulties in relating the tissue stages in the internal organs to the forms seen in the blood. Concomitant infections with a Plasmodium tropiduri-like malaria parasite were seen and were sometimes extremely heavy.
Full text:
Available
Collection:
International databases
Health context:
Neglected Diseases
Health problem:
Malaria
Database:
LILACS
Main subject:
Eukaryota
/
Lizards
Limits:
Animals
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2003
Document type:
Article
/
Project document
Affiliation country:
Brazil
Institution/Affiliation country:
Instituto Evandro Chagas/BR