Q Fever in Dairy Animals

This review evaluates the threat to human health—with the shedding of C. burnetii in dairy animals with reproductive disorders or those without clinical signs. The review also discusses the diagnosis of Q fever in livestock and the possibility of Coxiella‐free herds, and it reports the available methods for controlling Q fever. C. burnetii shedding seems to occur frequently in milk taken from asymptomatic dairy cows. The number of Coxiella shed in milk is generally low. The phase I vaccine prevented abortion and greatly decreased the shedding of C. burnetii in milk.