@article{Jones_Berghaus_Kalatari_Credille_Naikare_Heins_Saliki_Wilkes_2022, title={Seroprevalence and molecular detection of Anaplasma marginale infected beef herds in Georgia, USA}, volume={56}, url={https://bovine-ojs-tamu.tdl.org/bovine/article/view/8553}, DOI={10.21423/bovine-vol56no2p70-78}, abstractNote={<p>The objective of the study was to conduct and compare serop­revalence and molecular detection of <em>Anaplasma marginale</em>-in­fected beef herds in Georgia, and to identify herd risk factors associated with <em>A. marginale</em>-positive herds. Herd informa­tion from the beef operations was collected from the sampled herds through a questionnaire to determine practices that may affect the risk of herd infections with <em>A. marginale</em>. Blood samples were collected from 1,059 adult beef cattle (≥ 2 years) from 33 herds. Overall, 8.12% of cattle and 42% of herds were cELISA antibody-positive. Seventy-seven percent of plasma samples from a subset of corresponding seropositive samples (n = 73) were PCR positive. All of the 406 seronegative samples were negative by PCR. There was almost perfect agreement by Cohen’s kappa statistics between PCR and cELISA (k = 0.85). Survey response rate was 100%. Surprisingly, 27% of the pro­ducer respondents had not heard of anaplasmosis. Survey also revealed that many producers had management procedures at their operations that could potentially cause mechanical transmission of <em>A. marginale</em>. About 55% of respondents did not always disin­fect tools between animals and 88% of the operations used the same needle to inject more than one animal. Over 80% of the producer respondents had brought in new cattle onto their op­erations in the last 3 years from the time of this study. Given the 8% seroprevalence in Georgia beef cattle and the reported survey findings from this study, educational programs on ef­fective preventive management practices to control bovine anaplasmosis is warranted.</p>}, number={2}, journal={The Bovine Practitioner}, author={Jones, A. Lee and Berghaus, Roy D. and Kalatari, Allen A. and Credille, Brenton and Naikare, Hemant K. and Heins, Bradley and Saliki, JeremiahT. and Wilkes, Rebecca P.}, year={2022}, month={Dec.}, pages={70–78} }