Q Fever Studies in Southern California: XI. Recovery of Coxiella burnetii from Milk of Sheep

Abstract
Two of 300 cases of Q fever in southern California gave histories of contacts that specifically suggested sheep as a source of infection. Low titered reactions with Q fever antigens were demonstrated in the complement-fixation test by sera of sheep from one flock. Lacteal secretions from these sheep produced Q fever in test animals, and a strain of C. burnetii was established in guinea pigs and was identified by accepted criteria.

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