Volume 13, Number 5—May 2007
Research
Plague and the Human Flea, Tanzania
Figure 2
![Monthly domestic Pulex irritans index, averaged for low plague frequency villages (black columns) and high plague frequency villages (white columns). The error bars indicate standard deviation from the mean. No data were available for high plague frequency villages in June 2005 or for low plague frequency villages in July 2005.](/eid/images/06-1084-F2.jpg)
Figure 2. Monthly domestic Pulex irritans index, averaged for low plague frequency villages (black columns) and high plague frequency villages (white columns). The error bars indicate standard deviation from the mean. No data were available for high plague frequency villages in June 2005 or for low plague frequency villages in July 2005.
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