Ticks were collected from vegetation and animals at monthly intervals during one year (1993)(1994) 30(3):181-185, mai-jun, 1997.
Revista da Sociedade Brasileira de Medicina Tropical
ARTIGOSLemos ERS, Machado RD, Coura JR, Guimarães MAA, Freire NMS, Amorim M, Gazeta GS. Epidemiological aspects of the Brazilian spotted fever: seasonal activity of ticks collected in an endemic area in São Paulo, Brazil. Revista da Sociedade Brasileira de Medicina Tropical 30:181-185, mai-jun, 1997.
Abstract:The goal of this study was to identify feather mites on Cerrado birds. This study was conducted at Fazenda Água Limpa (FAL), Distrito Federal, Brazil, between January and August 2002. Birds were captured with mist nets and banded. Were sampled 696 birds, belonging to 83 species and 25 bird families of Passeriformes and non-Passeriformes. Feather mites were found on five families: Analgidae, Trouessartiidae, Proctophyllodidae, Avenzoariidae and Psoroptoididae. The present work reports new occurrences of feather mites on captured hosts. The family Proctophyllodidae and the genus Pterodectes were the most prevalent group of feather mites collected. Tyrannidae, Pipridae, Emberizidae and Thraupidae were the bird families with most host numbers, with parasites from three taxa: Trouessartiidae, Proctophyllodidae and Analgidae. Considering the birds captured the prevalence was 44.98%. Trochilidae, Conopophagidae, Furnariidae, Tityridae, Turdidae, Mimidae, Cardinalidae, and Parulidae were the families with major feather mites prevalence (≥50%
From July to December 1977 and from June to November 1978 the toxic effects of Amblyomma cajennense were studied in cattle sheep and goats. Locomotor disturbances commencing as hind-limb paralysis ascended to the upper nervous centres causing paralysis. This was observed in natural infections and confirmed experimentally. Tick paralysis is reported for the first time in Brazil, manifesting itself in a different form to that usually attributed clinically to the disease. Also for the first time reference is made to tick paralysis induced by all developmental stages of A. cajennense.
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