Figure 1.
Percentage of cases with smear-positive pulmonary tuberculosis with conventional contact tracing completed. Barcelona 2000-2005.
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.