Reduced viral load in the lungs.

<p>Five days after challenge four (C57BL/6) and six (BALB/c) mice were sacrificed and virus titers in the lungs were determined by end point titration. Depicted are log transformed titers in the lungs for C57BL/6 mice <b>(A)</b> and BALB/c mice <b>(B)</b>. Data were analyzed by the Mann-Whitney test.*p = <0.05 **p = <0.01 compared to mock vaccinated mice.