Thirty-eight (2%) of a total of 1885 dogs autopsied at the Pathology Department of the Research Institute for Pharmacy and Biochemistry at Rosice nad Labem during a 15-year (1975-1989) period showed pathological alterations of a lungworm infection. According to findings of lung gross pathology and histopathology and of the parasite morphology, we supposed the Filaroides infection without any clinical significance.
This is the first report of Filaroides infection in the Czech Republic.