Figure 2From: Evidence of Yersinia pestis DNA from fleas in an endemic plague area of ZambiaDetection of Y. pestis plasminogen activator gene in fleas by PCR that were collected from rodents. Lanes1 to 5, results of the positive fleas from the gerbils. Lane 6 is the negative control from fleas trapped in a non endemic area, while Lane 7 is the negative control of using brain-heart infusion broth as template.Back to article page