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  • Title: Seroprevalence of Toxoplasma gondii in beef cattle and dairy cattle in northeast China.
    Author: Qiu JH, Wang CR, Zhang X, Sheng ZH, Chang QC, Zhao Q, Wu SM, Zou FC, Zhu XQ.
    Journal: Foodborne Pathog Dis; 2012 Jul; 9(7):579-82. PubMed ID: 22545962.
    Abstract:
    The seroprevalence of Toxoplasma gondii in beef cattle and dairy cattle in Heilongjiang Province, northeast China, was surveyed between April 2009 and May 2011. A total of 1803 (693 beef cattle and 1110 dairy cattle) serum samples were collected from 10 administrative regions rearing beef cattle and dairy cattle, and antibodies to T. gondii were examined by indirect hemagglutination (IHA) test. The overall seroprevalence of T. gondii in beef cattle and dairy cattle was 2.6% (46/1803), and the prevalence in beef cattle (3.0%) was slightly higher than that in dairy cattle (2.3%). The prevalence of antibodies in adult animals was higher than that in calves, but the differences among the age groups were not significant (p>0.05). The seroprevalence in female (3.4%) and male (2.5%) beef cattle was not statistically significant (p>0.05). Though the prevalence in intensively reared beef cattle and dairy cattle was lower than that in semi-intensively reared animals, the difference was not statistically significant (p>0.05). The results of this survey indicated the presence of T. gondii infection in beef cattle and dairy cattle in Heilongjiang Province, the coldest province in China, which may cause economic losses to the local livestock industry, and may be a source of T. gondii infection for humans in this region.
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