coxiella burnetii is the etiologic agent of q fever in human. this study is aimed to determine the contamination rate of c. burnetii in bulk tank milk samples. in this study, a total number of 100 bulk milk samples collected from dairy farms in northeast of iran and were examined for c. burnetii using touchdown pcr assay. the primers were designed to amplify a 687-bp fragment of the is1111 gene...

Dairy cattle are a primary reservoir of Coxiella burnetii, which causes Q fever. However, no recent nationwide studies have assessed the prevalence and risks of Q fever in dairy cattle. We report >or=94% prevalence in samples of bulk tank milk from U.S. dairy herds tested during the past 3 years.

Abstract Milk fever, or hypocalcemia, has a significant economic impact on the dairy industry and increases risk of other costly disorders including ketosis displaced abomasum. The objective this study was to identify genetic variants, genes molecular mechanisms causing variation in development milk fever. A genomic based mixed linear animal model fitted include single nucleotide polymorphisms ...

The objective of this study was to know the herd and animal level prevalence of Q fever in domestic ruminants in some selected districts in Bangladesh. Randomly collected 111 bulk milk and 94 sera samples of cattle, sheep, and goats were tested by indirect ELISA (iELISA). DNA extracted from 23 aborted fetal membranes was analyzed by real time (rt) PCR. The positive cut-off value of iELISA in bu...