Sorologia para o vírus da língua azul em bovinos de corte, ovinos e veados campeiros no Pantanal sul-mato-grossense / Bluetongue virus serosurvey in beef cattle, sheep, and pampas deer from Brazilian Pantanal

This investigation was carried out in beef cattle (n=219), sheep (n=55), and pampas deer (Ozotoceros bezoarticus) (n=49) from Nhecolândia, sub region of Brazilian Pantanal in Mato Grosso do Sul State, Brazil. It was aimed to assess the seropositivity of these species to bluetongue virus (BTV) by agar gel immunodiffusion test. Seropositivity rates were 42.0% for cattle and 10.9% for sheep. The pampas deer showed to be all seronegative. In cattle, seropositivity to BTV significantly increased with age (P<0.001). These data, the favorable environmental conditions to development of BTV vectors, and the bovine reproductive disorders reported by farmers may indicate that BTV infection occurrs in herds of Brazilian Pantanal, and probably induces to economical losses.

Coagulopatia devido à infecçäo aguda por Trypanosoma evansi em um cäo / Coagulopathy due to Trypanosoma evansi acute infection in a dog

O Trypanosoma evansi é um tripanosoma da secçäo salivaria pertencente ao subgênero Trypanozoon. Ele causa a "surra" no velho mundo e o "mal de caderas" na área subtropical da Argentina e no Pantanal, Brasil. Há similaridades entre as lesöes e patogenia causadas por T. brucei, T. evansi e T. equiperdum, inclusive no consumo de plaquetas na coagulaçäo intravascular disseminada (DIC). O presente estudo mostra os valores de APTT, PT e contagem de plaquetas evidenciando a DIC no primeiro relato de infecçäo natural pelo T. evansi em cäo no Pantanal, Brasil