Table 1

Strain	D₁₀ (mJ/cm²)	R²
Utah-112	0.71^a	0.96
LVS	0.62^b	0.95
NIH B-38	0.64^b	0.94
Mean (SEM)	0.66(0.03)	N/A

Table 1: Ultraviolet light inactivation of Francisella tularensis on thioglycollate agar plates. Each experiment was conducted independently 3 times. D₁₀ values with the same superscript letters are statistically similar as determined by student’s t-test (p<0.05). Standard error of the mean (SEM) is shown in parenthesis.