Figure 1.
Prevalence of Mycobacterium tuberculosis complex (MTC) infection according to age in serum (Serum ELISA, in blue) and oral fluid (OF ELISA, in red) samples, determined by ELISA. Error bars denote the standard error values.
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.