Accession Number : AD0700083

Title :   COMPARISON OF INTERRELATIONSHIPS BETWEEN BLOODSUCKING ARTHROPODS AND RICKETTSIA PROWAZEKI,

Corporate Author : NAVAL MEDICAL RESEARCH UNIT NO 3 CAIRO (EGYPT) DEPT OF MEDICAL ZOOLOGY

Personal Author(s) : Grokhovskaya,I. M. ; Sidopov,V. F. ; Kryuchechnikov,V. N. ; Ignatovich,V. F.

Report Date : 1969

Pagination or Media Count : 2

Abstract : The susceptibility and duration of rickettsia in the body of argasids (Alectorobius papillipes, O. moubata, and Alveonasus lahorensis) and ixodids (H. asiaticum, H. anatolicum, H. dromedarii, D. pictus, D. marginatus, D. nuttalli, and R. turanicus) has been studied. Three methods of experimental infection were utilized, feeding on infected animals, on epidermal membrane, and parenteral inoculation of infectious material. Many Ixodoidea proved to be susceptible to Rickettsia prowazeki. Within the limits of each family studied (Argasidae and Ixodidae), no specific differences in interrelationships between ticks and Rickettsia prowazeki were recorded. Among ixodid ticks, more positive results were obtained with Dermacentor than with Hyalomma ticks. The argasid ticks Alectorobius papillipes and O. moubata are susceptible to rickettsia in all developmental stages of metamorphosis, and transmit these transstadially. Alectorobius papillipes and Alveonasus lahorensis, in comparison with O. moubata, are more susceptible to Rickettsia prowazeki. Longer periods of retention of rickettsia were recorded for these species. It is precisely for argasid ticks that possibility of infection of guinea-pigs by scarification (Alveonasus lahorensis), and infectiveness of excreta was demonstrated. Transmission through bite was demonstrated only for O. moubata.

Descriptors :   (*TICKS, *RICKETTSIA PROWAZEKII), DISEASE VECTORS, PARASITES, INFECTIONS, GUINEA PIGS, IRAN, USSR

Subject Categories : Microbiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE