canine dirofilariasis in the region of conceição lagoon, florianópolis, and in the military police kennel, são josé, state of santa catarina, brazil.eighty dogs from a locality west of the conceição lagoon, in the santa catarina island, florianópolis municipality, state of santa catarina, brazil, were examined for dirofilariasis by thick smear and by modified knott's method. twelve of them (15%) were positive, five only by knott's, two only by thick smear and five by both methods. positive dogs were observed in several parts of the locality, indicating that the parasite is widespread. prevalence was significantly higher in older animals. siz ...200312719138
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