TABLE 2.

Virus titers in dorsal root ganglia of mice infected with NS, NS-gEnull, NS-gE210, or NS-gE380^a

Virus	Mean titer (PFU/ml) ± SEM
	Day 3	Day 5
NS	79 ± 20	30,125 ± 11,208
NS-gEnull	≤3	≤3
NS-gE210	28 ± 5	≤3
NS-gE380	≤3	≤3

^aResults are the means ± SEM for dorsal root ganglia from three mice at each time point except for NS at day 5, which represents six mice. The sensitivity of the assay to quantify virus titers is ≤3 PFU/ml of ganglion tissue.