Seroprevalence of Babesia infections of dairy cows in northern Thailand

The present study was conducted to demonstrate the epidemiological distribution of bovine babesiosis in the northern regions of Thailand. A total of 700 serum samples of dairy cows in the northern provinces (Chiang Rai, Chiang Mai, Lumpang, and Mae Hong Sorn) were tested for antibodies against Babes...

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Bibliographic Details
Published in:Veterinary parasitology 2010-06, Vol.170 (3), p.193-196
Main Authors: Iseki, Hiroshi, Zhou, Lijia, Kim, Chulmin, Inpankaew, Tawin, Sununta, Chainirun, Yokoyama, Naoaki, Xuan, Xuenan, Jittapalapong, Sathaporn, Igarashi, Ikuo
Format: Article
Language:English
Subjects:
Animals
antibody detection
Babesia
Babesia - isolation & purification
Babesia bigemina
Babesia bovis
babesiosis
Babesiosis - epidemiology
Babesiosis - veterinary
blood serum
Cattle
cattle diseases
Cattle Diseases - epidemiology
Cattle Diseases - parasitology
Dairy cows
Dairying
disease prevalence
enzyme-linked immunosorbent assay
Enzyme-linked immunosorbent assay (ELISA)
epidemiological studies
Female
fluorescent antibody technique
geographical distribution
indirect fluorescent-antibody test
Indirect fluorescent-antibody test (IFAT)
Seroepidemiologic Studies
seroprevalence
Thailand
Thailand - epidemiology
Western blot
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Summary:The present study was conducted to demonstrate the epidemiological distribution of bovine babesiosis in the northern regions of Thailand. A total of 700 serum samples of dairy cows in the northern provinces (Chiang Rai, Chiang Mai, Lumpang, and Mae Hong Sorn) were tested for antibodies against Babesia bovis and B. bigemina. Species-specific enzyme-linked (rRAP-1/CTs) were performed. According to the results, 517 (73.8%) and 484 (69.1%) were positive for B. bovis and B. bigemina, respectively. In addition, 370 (52.9%) were positive for mixed infections by both ELISAs. On the other hand, all samples were also examined by the indirect fluorescent-antibody test (IFAT) with B. bovis- and B. bigemina-infected blood smears. According to the IFAT, 482 (68.8%) and 531 (75.8%) were positive for these infections, respectively. The overall concordances between the ELISA and IFAT techniques were 93.6% and 90.7% for B. bovis and B. bigemina infections, respectively. These results indicated that babesia infections are widespread in the northern parts of Thailand. To our knowledge, this is the first report describing the epidemiology of Babesia infections using rRAP-1/CT-based ELISAs in these areas.
ISSN:0304-4017
1873-2550
DOI:10.1016/j.vetpar.2010.02.038