[Domestic cats as a source of human flea infestations in towns].

During the summer and autumn periods of 1990-1992 a periodic massive incidence, infestation as well as parasitization of humans with flea Ctenocephalides felis were recorded in the basements of flat blocks in the central area of Kosice. The urban population of domestic cats served as a source of the infestation. The dark field examination of fleas for the presence of borrelias revealed negative results.