Ticks and tick-borne diseases · 2015
Molecular survey of Babesia infections in cattle from different areas of Myanmar.
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Bawm Saw, Htun Lat Lat, Maw Ni Ni, Ngwe Tin, Tosa Yusuke, Kon Tomoyuki, Kaneko Chiho, Nakao Ryo, Sakurai Tatsuya, Kato Hirotomo, Katakura Ken
Аннотация
Cattle babesiosis is one of the most important tick-borne diseases worldwide. The present study reports a molecular survey of Babesia infections in cattle in Myanmar. Nested PCR assays based on the Babesia bigemina apical membrane antigen-1 gene (AMA-1) and B. bovis rhoptry associated protein-1 gene (RAP-1) revealed that the overall percentage of B. bigemina and B. bovis infection were 9.8% (70/713) and 17.1% (122/713), respectively. A mixed infection was detected in 4.6% (33/713) of animals. Animals <1 year (OR=13.66, CI=5.15-36.26) and 1-5 years of age (OR=3.91, CI=1.50-10.17) were identified as potential risk factors for B. bigemina infection. For B. bovis infection, age <1 year (OR=3.06, CI=1.63-5.75) and 1-5 years (OR=2.08, CI=1.21-3.57), Friesian-Zebu crossbreeds (OR=2.04, CI=1.26-3.30) and grazing (OR=1.59, CI=1.06-2.38) were identified as potential risk factors. This is the first report on a nationwide survey of bovine Babesia infections in Myanmar, providing useful information for the management and control of the disease.