parvovirus

listen to the pronunciation of parvovirus
الإنجليزية - الإنجليزية
any single-stranded DNA viruses, of the genus Parvovirus, being the smallest found in nature; they infect only mammals
{i} any of very small viruses that cause contagious disease in dogs and animals
any of a group of viruses containing DNA in an icosahedral protein shell and causing disease in dogs and cattle; not known to be associated with any human disease
parvo

He will probably be next to a street cur that has parvo or rabies or distemper.