| the occurrence of dirofilaria immitis in dogs in south australia. | heart, lung and samples of blood from 230 dogs were examined for infections of filarial parasites. dirofilaria immitis worms and microfilariae were detected in one dog. blood samples from a further 1428 dogs were examined for microfilariae and 22 were found to be infected. eighteen dogs were infected with d immitis microfilariae and four with dipetolonema reconditum microfilariae. the histories were available for 18 of the dogs infected with heartworm and only seven dogs had not travelled outsid ... | 1992 | 1632726 |