|Description:||This image depicts a plague epidemiologist in the process of examining a rodent that had been found deceased in its natural habitat. At this point in the analysis, the scientist was dissecting the animal, and had opened what appears to be the abdominal cavity in search of any pathologic changes, which could indicate the presence of plague bacteria, Yersinia pestis.|
Any dead animals located during the investigation should be bagged, frozen, and shipped frozen to the plague laboratory. Do not send just the liver and spleen! Mummified carcasses and long (leg) bones from rodent skeletons can be shipped in unrefrigerated mailing tubes. Plague antigen remains detectable in long bone marrow long after it has disappeared in other portions of the carcass.