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Molecular investigation of the status of ticks on infected cattle for Coxiella burnetii in India

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Title Molecular investigation of the status of ticks on infected cattle for Coxiella burnetii in India
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Creator 5. Dhaka, P., Malik, S.V.S., Yadav, J.P., Ghosh, S., Kumar, M., Barbuddhe, S.B., Rawool, D.B.
 
Subject Cattle, Coxiella burnetii, India, IS1111, gene Ticks Trans-PCR
 
Description Not Available
Purpose
In Indian subcontinent, the epidemiological studies on the status of ticks in the transmission of Coxiella burnetii have not been explored comprehensively. The objective of the present study was to investigate the status of ticks for C. burnetii among coxiellosis positive cattle.

Methods
The present study was carried out in three locations of the northern states of India. A total of 1648 tick samples were collected from the tick infested cattle (n = 146) that were tested positive for coxiellosis by indirect serum-ELISA assay and/or the trans-PCR assay. The tick samples were screened using the trans-PCR assay targeting species-specific IS1111 transposase gene of C. burnetii. The sequencing of PCR products was planned to differentiate C. burnetii and Coxiella-like bacteria (CLB).

Results
The collected ticks were identified as Rhipicephalus microplus (n = 1049), Hyalomma anatolicum (n = 416), and Hyalomma spp. (n = 183). On molecular investigation, none of the collected tick samples were found to be positive for the IS1111 gene.

Conclusion
The findings of the present study ruled out the involvement of ticks in circulation of the pathogen within the cattle population that were screened. However, extensive epidemiological studies are needed to conclusively rule out or establish the role of ticks as a competent vector for C. burnetii transmission in cattle and other hosts.
Institute
 
Date 2021-07-22T09:04:18Z
2021-07-22T09:04:18Z
2020-04-24
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/49342
 
Language English
 
Relation Not Available;
 
Publisher Acta Parasitologica