[Nest ectoparasites (gamasid mites) as vectors for rickettsia under experimental conditions].

The author gives a review of occurrence of rickettsiae (Coxiella burnetii, R. slovaca, R. sibirica, R. prowazekii, R. mooseri, R. akari) in gamasid mites, investigated in laboratory or in nature. The results of our experiments and from literature also are summarized in tables. The experimental infection with C. burnetii was investigated by natural route of infection in the following species of mites: Haemogamasus nidi, H. hirsutus, Androlaelaps casalis. We found C. burnetii in smears, stained with Gimenez and IMF, with whole bodies as well as in their excrements. The white mice injected with the suspension from these mites gave the positive serological response.