Accession Number : AD0700089

Title :   IXODOIDEA TICKS AND RICKETTSIA PROWAZEKI,

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

Personal Author(s) : Grokhovskaya,I. M. ; Ignatovich,V. F. ; Sidorov,V. E.

Report Date : 1969

Pagination or Media Count : 12

Abstract : Our investigation was made with the aim of giving a more precise definition to the question of the potential possibilities of maintaining and transmitting R. prowazeki by ticks. We studied the susceptibility of ticks of the Superfamily Ixodoidea to R. prowazeki by the comparative method. We employed 3 methods for tick infection: (1) feeding ticks on infected animals; (2) feeding ticks through an abdominal membrane on blood mixed with rickettsial culture; (3) injecting R. prowazeki directly into the tick body cavity. Use of these methods allowed us to observe the distribution peculiarities and rickettsial accumulation in various tick species, and also to follow the duration of rickettsial survival within the tick body by using different methods of infection. Tests also were made to elucidate the mechanism of infection of healthy animals by ticks and the possibility of transovarial transmission in ticks. Investigation was made on laboratory reared ticks of the families Ixodidae and Argasidae, which had repeatedly been checked for R. prowazeki, R. burneti, and D. sibericus infection.

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

Subject Categories : Microbiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE