Prevalence of Spotted Fever Group Rickettsiae in Ticks from Southern Israel
| Autor: | Rachel Galun, Dror Guberman, Inna Ioffe-Uspensky, Kosta Y. Mumcuoglu, Avi Keysary, Jacqueline Miller |
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| Rok vydání: | 1996 |
| Předmět: |
Antigens
Bacterial Veterinary medicine General Veterinary biology Rhipicephalus sanguineus Tick biology.organism_classification medicine.disease Antibodies Bacterial Virology Spotted fever Ticks Infectious Diseases Rickettsia Rickettsiosis Insect Science medicine Animals Humans Parasitology Acari Rickettsia conorii Ixodidae |
| Zdroj: | Journal of Medical Entomology. 33:979-982 |
| ISSN: | 1938-2928 0022-2585 |
| DOI: | 10.1093/jmedent/33.6.979 |
| Popis: | The prevalence of spotted fever group rickettsiae was studied in questing ticks collected from southern Israel. Ticks were examined from an agricultural settlement (kibbutz Ze'elim), an endemic site for Mediterranean spotted fever, and from another kibbutz (Re'im) in an adjacent area where the disease has not been reported. Ticks were collected by flagging and CO 2 traps from vegetation inside and outside the settlements during 1989/1990 and 1994. In Ze'elim, 98% of the ticks collected were brown dog tick, Rhipicephalus sanguineus (Latreille), whereas in Re'im the predominant species was Rhipicephalus turanicus Pomerantzev (84.6%), with 11.8% of the ticks R. sanguineus and 3.6% Hyalomma excavatum Koch. The presence of rickettsiae in the hemolymph of the ticks was demonstrated by immunofluorescence using polyclonal antibodies made against the human pathogenic Moroccan strain of Rickettsia comorii. Of 549 ticks examined in 1989/1990 from Ze'elim, 7.3% were positive for spotted group rickettsiae, and in Re'im 2.2% of 156 R. turanicus were positive. In 1994, 51 out of 186 (27.4%) ticks in Ze'elim and 3 out of 115 (2.6%) ticks in Re'im were positive. All 20 specimens of H. excavatum were negative for spotted fever group rickettsiae. To our knowledge, this is the 1st report of spotted fever group rickettsiae in R. turanicus from Israel. |
| Databáze: | OpenAIRE |
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