Low prevalence of antibodies against Toxoplasma gondii in dairy cattle from China's central region
- PMID: 30340586
- PMCID: PMC6194598
- DOI: 10.1186/s12917-018-1629-3
Low prevalence of antibodies against Toxoplasma gondii in dairy cattle from China's central region
Abstract
Background: Toxoplasma gondii is an intracellular protozoan that can infect humans and other animals, including cattle. Cattle are one of the world's main sources of meat, and people who consume raw or undercooked meat and milk of cattle infected with T. gondii can become infected. In this study, a total of 5292 dairy cattle serum samples, collected from 17 cities (Henan Province, China) from January 2015 to September 2017, were screened for antibodies against T. gondii.
Results: Antibodies to T. gondii were found in 1.93% (102/5292) (95% CI, 1.56-2.30) of dairy cattle using a modified agglutination test (cut-off 1:100). The results showed that geographic location and season may be risk factors for T. gondii infection of cattle (P < 0.05), and the seroprevalence of T. gondii in cattle along the Yellow River is higher than other areas.
Conclusions: This is the first large-scale investigation on the seroprevalence of T. gondii infection in cattle from Central China. This survey shows that the T. gondii infection rate of dairy cattle is low; however, these findings provide additional information on the epidemiology of Chinese T. gondii. The possibility of dairy cattle exposure to T. gondii in Central China can not be ignored, and the consumption of raw or undercooked beef or milk may pose a risk to human health.
Keywords: Cattle; China; Henan Province; Modified agglutination test; Risk factor; Seroprevalence; Toxoplasma gondii.
Conflict of interest statement
Ethics approval
Verbal consent for collecting samples from the farm animals was obtained. This method is widely used in China and was approved by the ethics committee of Henan Agricultural University (China). The protocol was approved by the Beijing Association for Science and Technology (SYXK [Beijing] 2007–0023).
Consent for publication
Not applicable.
Competing interests
The authors declare that they have no competing interests. None of the authors of this report have financial or personal relationships with other people or organizations that could inappropriately influence its content.
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