Table 4.
Effect of different doses of formalin-inactivated WNV vaccine on IC challenge in wild type mice on day 60
Vaccination | Challenge Dose WNV PFU | # survived/total | P value |
---|---|---|---|
Intramuscular route | |||
Placebo | 101 | 0/10 | |
1 μl (104 PFU) | 101 | 1/10 | 0.1 |
10 μl (105 PFU) | 101 | 2/10 | 0.2 |
100 μl (106 PFU) | 101 | 8/10 | 0.0003 |
Intraperitoneal route | |||
Placebo | 101 | 0/10 | |
1 μl (104 PFU) | 101 | 1/10 | 0.1 |
10 μl (105 PFU) | 101 | 3/10 | 0.08 |
100 μl (106 PFU) | 101 | 7/10 | 0.001 |
Eight week-old wild type mice were vaccinated with different doses of formalin-inactivated WNV vaccines through the indicated routes. Mice were challenged 60 days after immunization with 101 PFU of WNV New York by an IC route and monitored for survival for 28 days. P values were determined using log rank test.