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.
Intracellular growth inhibition activity of alveolar macrophages. Macrophages collected from the BAL fluid of all groups of immunized or control mice were infected in vitro with M. tuberculosis H37Ra and cocultured with lymphocytes for 72 h. The number of viable bacilli present inside macrophages after 72 h were determined by CFU counting. Cells were taken from four mice per group for this study. The results shown here are representative of two similar experiments. ***, P < 0.001.
