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Molecular detection of Ehrlichia canisin ticks population collected on dogs in Meshkin-Shahr, Ardebil Province, Iran

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Journal of Biomedical Science and Engineering 2013年第7期6卷 1-5页

作者： Atefeh Khazeni Zakieh Telmadarraiy Mohammad Ali Oshaghi Mehdi Mohebali Zabiholah Zarei Seyed Mohammad Abtahi Department of Medical Entomology and Vector Control School of Public Health Tehran University of Medical Sciences (TUMS) Tehran Iran Department of Medical Parasitology School of Public Health Tehran University of Medical Sciences (TUMS) Tehran Iran Department of Parasitology School of Medicine Isfahan University of Medical Sciences and Health Services Isfahan Iran

Canine monocytic ehrlichiosis is a disease which can cause death in dogs and cats by the Ehrlichia canis and transmitted by hard ticks. The main vector is Rhipicephalus sanguineus which is a common tick in Iran and common ectoparasite on dogs. Few researches has been done to show Ehrlichiosis situation in dog’s ticks. Animal husbandry in Meshkin-Shahr County from Ardebil province (North-West Iran) is the main job of people. Specimens were collected on dogs’ ears, neck, shoulder and toes and they were transferred to the Entomology Laboratory, School of Public Health, Tehran University of Medical Sciences. After DNA extraction, Ehrlichia agent was detected by nested-PCR, 16 s rRNA amplification. Determination of sequence homologies have been done in Gen-Bank. 146 ticks were identified which included 29.44% female and 47.94% male. Rhipicephalus sanguineus were the most prevalent ticks. Ehrlichia spp and Anaplasma spp were found in 43.84% of all the specimens containing Anaplasma ovis, and Ehrlichia sp. and Herlichia canis. Rhipicephalus sanguineus is widely spread and the most common ticks on dogs. As far as we know, this is the first report of E. canis in vector from Iran. Nested PCR showed that hard ticks can contain Anaplasma ovis, Ehrlichia spp and E. canis. These results warrant studying on vector competence of ticks for the Ehrlichiosis agents.

关键词： Ehrlichiosis Tick Dog Anaplasma ovis Ehrlichia canis Ardebil Iran

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Molecular Detection of Anaplasmaand EhrlichiaInfection in Ticks in Borderline of Iran-Afghanistan

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Journal of Biomedical Science and Engineering 2014年第11期7卷 919-926页

作者： Ahmad Jafarbekloo Hasan Bakhshi Faezeh Faghihi Zakkyeh Telmadarraiy Atefeh Khazeni Mohammad Ali Oshaghi Maryam Roya Ramzgouyan Mohammad Mehdi Sedaghat School of Medicine Tehran University of Medical Sciences (TUMS) Tehran Iran School of Public Health Tehran University of Medical Sciences (TUMS) Tehran Iran Cellular and Molecular Research Center Iran University of Medical Sciences Tehran Iran School of Advanced Technologies in Medicine Tehran University of Medical Sciences Tehran Iran

Anaplasmosis, a disease caused by various species of Anaplasma, poses important economic constraints to animal breeders. Ehrlichiosis is a worldwide zoonosis illness and mostly occurs in tropical and subtropical regions that are close to the vector’s distribution. Tick-borne pathogens lead to over 100,000 cases of illness in the world each year. Besides the costs of the additional veterinary care, anaplasmosis causes abortion in animals, reduction of milk production, body weight, and frequently leads to death. In this study, we investigated on infection of ticks to Anaplasma and Ehrlichia pathogens in Zabol and Zahak County in Sistan and Baluchestan Province where is bordered with Afghanistan. Totally from June 2013 to May 2014, 369 ticks were caught from goats, cows and sheep. Molecular studies on 53 of these samples which represented all specimens, showed that Ehrlichia’s DNA and Anaplasma’s DNA was found in 14 (26.4%) out of the 53 selected specimens. The results showed the infection of Rhipicephalus sanguineus and Hyalomma anatolicum with Anaplasma ovis. Also we saw infection of H. anatolicum and H. asiaticum ticks to Ehrlichia spp. This study has been intended to do a comprehensive survey of Ehrlichia and Anaplasma distribution in ticks caught from east of Iran;it was designed to investigate the presence of Anaplasma spp. and Ehrlichia spp. in Zabol and Zahak Counties, Iran. These results show that these pathogens should be controlled in such regions.

关键词： Anaplasma Ehrlichia Tick Iran

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