AI Article Synopsis
- - Anaplasma phagocytophilum is a tick-borne bacterium that causes tick-borne fever in animals and human granulocytic anaplasmosis in people, primarily transmitted by hard ticks, especially those from the Ixodes species.
- - A study in Khuzestan province, Iran, analyzed 200 hard ticks using a specific nested-PCR method to detect A. phagocytophilum, focusing on the 16SrRNA gene fragment.
- - Results showed that 15.5% of the tick samples tested positive for the bacterium, primarily in Rhipicephalus sanguineous and Hyalomma marginatum ticks, suggesting that other hard tick species contribute to the spread of this infection
Article Abstract
Anaplasma phagocytophilum is a gram-negative obligate intracellular tick-borne rickettsia with veterinary and public health importance worldwide. This organism is an etiologic agent of tick-borne fever (TBF) in domesticated animals and human granulocytic anaplasmosis (HGA) as well. Hard ticks (Ixodida: Ixodidae) are incriminated as the main biologic vectors for Anaplasma spp. Studies represent that Ixodes spp. are the main vectors for A. phago-cytophilum and few reports hinted that other tick species may play this role. So, the goal of the presented work was to investigate the A. phagocytophilum in 2000 hard ticks in Khuzestan province of Iran by specific nested-PCR performing two consecutive amplifications of 16SrRNA gene fragment with highly variable nucleotide region. Each reaction included 10 salivary glands of distinct tick species. Specific nested-PCR on accumulated salivary glands detected specific bands in 15.5% of reactions (31 of 200) in electrophoresis only in Rhipicephalus sanguineous and Hyalomma marginatum ticks. We concluded that the broad distribution of A. phagocytophilum infection is not only is due to the existence of Ixodes spp. but other hard ticks may also play a role in this issue.
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| http://dx.doi.org/10.4103/0972-9062.316273 | DOI Listing |
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