Table 1.

TCID₅₀ of isolates and reference strain SCDN (Strain that isolated from Bulldog in Sichuan Province) when treated with heat, acid, organic solvent, or 5-IDUR.

Condition	SCDN TICD50/mL	CPV-YA-ZA1 TICD50/mL	CPV-YA-ZA2 TICD50/mL	CPV-YA-ZA4 TICD50/mL	CPV-YA-ZA5 TICD50/mL	CPV-CD-ZA1 TICD50/mL	CPV-LS-ZA1 TICD50/mL
Control	1.6 × 105	1.3 × 105	1.0 × 105	1.6 × 105	1.3 × 105	2.0 × 105	0.8 × 105
60 °C	0.9 × 105	1.0 × 105	0.8 × 105	1.4 × 105	0.9 × 105	1.8 × 105	0.4 × 105
pH 3	0.6 × 105	0.5 × 105	0.3 × 105	0.8 × 105	0.6 × 105	1.3 × 105	0.1 × 105
Ether	0.7 × 105	0.6 × 105	0.4 × 105	0.9 × 105	0.5 × 105	1.2 × 105	0.2 × 105
5-IDUR	0.4 × 103	0.7 × 103	0.6 × 103	0.9 × 103	0.9 × 103	1.9 × 103	0.9 × 103