Volume 13, Number 8—August 2007
Research
Venezuelan Equine Encephalitis Virus Infection of Cotton Rats
Anne-Sophie Carrara*, Lark L. Coffey*, Patricia V. Aguilar*, Abelardo C. Moncayo*, Amelia P.A. Travassos Da Rosa*, Marcio R.T. Nunes†, Robert B. Tesh*, and Scott C. Weaver*
Table 2
Mean viremia titers of Florida, Texas, and Harlan cotton rats inoculated subcutaneously with Venezuelan equine encephalitis virus, subtype ID or IE*
| Day postinfection | Cotton rat population and virus subtype |
|||||
|---|---|---|---|---|---|---|
| Florida, IE | Florida, ID | Texas, IE | Texas, ID | Harlan, ID | ||
| 1 | 6.1 ± 0.2 | 5.2 ± 0.2 | 6.3 ± 0.2 | 6.1 ± 0.2 | 6.8 ± 0.9 | |
| 2 | 5.2 ± 0.2 | 5.4 ± 0.1 | 6.4 ± 0.1 | 6.6 ± 0.2 | 5.8 ± 0.9 | |
| 3 | 3.7 ± 0.4 | 4.1 ± 0.2 | 5.6 ± 0.2 | 6.3 ± 0.2 | 6.5 ± 0.5 | |
| 4 | <1.9 | 2.3 ± 0.2 | 3.8 ± 0.3 | 5.6 ± 0.2 | 4.7 ± 0.8 | |
| 5 | <1.9 | <1.9 | 2.6 ± 0.3 | 5.0 ± 0.5 | 3.9 ± 0.1 | |
| 6 | <1.9 | <1.9 | 2.2 ± 0.2 | 3.6 ± 0.7 | 3.9 ± 0.2 | |
| 7 | <1.9 | <1.9 | <1.9 | <1.9 | 2.0 ± 0.0 | |
| 8 | <1.9 | <1.9 | <1.9 | <1.9 | 2.1 ± 0.3 | |
*Titers are expressed as log10 PFU/mL ± standard error; 1.9 log10 PFU/mL is the limit of detection of the plaque assay.
