Figure 1. West Nile virus (WNV) viremia profile in 8 eastern chipmunks (Tamias striatus) that were inoculated intramuscularly with virus. One chipmunk received 105.7 PFU of WNV and was sampled only on day 2 postinoculation (p.i.). Three chipmunks received 103.5 PFU of WNV, 1 received 102.6 PFU, and 3 received 101.5 PFU. The number of chipmunks that received 103.5 PFU of WNV decreased to 2 on day 3 p.i. and to 1 on day 4 p.i. The number of chipmunks that received 101.5 PFU of WNV was 2 on days 2 and 3 p.i.
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