Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Viral titers in lung tissue of mice. BALB/c mice were infected intranasally with 105.2 PFU of transfectant viruses. On days 2, 4, and 6 following virus administration, mice were sacrificed and their lungs were removed for virus quantitation. Lungs of four mice were pooled, homogenized, and assayed for infectious virus particles in plaque assays on Vero cells.
