adriano penha furtado - BAIP - Universidade Federal do Pará

ABSTRACT
Filarids are elongate and filiforms nematodes parasites. Canids filarids
parasites belong to the Onchocercidae Family and are represented mainly by
Genus Acanthocheilonema, Dipetalonema and Dirofilaria. These filarids
develop in different places in the vertebrate host, and need for haematophagus
invertebrate host to complete your cycle. Different infection levels can occur,
since assintomatic, until the death of dog. The filarids parasites of dogs are
found mainly in the region between the tropics. In the Amazon region a little is
known about the distribution of these parasites, and until this moment, a study
of distinguishing diagnosis was not performed. With this objective, we choose
two cities in the Marajó Island (Salvaterra and São Sebastião da Boa Vista) and
carry through a epidemiologic, morphologic and molecular studies. The
percentage of microfilaremics dogs was of 37.34% in Salvaterra and 6.67% in
São Sebastião da Boa Vista, resulting in a total prevalence of 32.45%.
Analyzing the morphologic characteristics of the collected adult filarids, we
concluded that these worms are of the Dirofilaria immitis species. For analysis
of genic region, we conclude that the microfilariaes found in the dogs blood
studied are also D. immitis species, and that these dogs had not presented
mixing infection.
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