Figure 1.

Epidemic curves of mosquito WNV in 2002–2007. X-axis shows individual months from April to October. Y-axis presents mosquito counts of WNV positive tests. Each curve represents WNV records in a single year from 2002 to 2007.

Liu et al. International Journal of Health Geographics 2008 7:66   doi:10.1186/1476-072X-7-66
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