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.
Mycobacterium tuberculosis strains used for this study, with genetic markers and countries of origin. IS6110 RFLP profiles and clustering are shown, as well as typing by spoligotyping and determination of the presence of IS6110 in the NTF region. Note that all reactivation strains were isolated from Dutch patients over 70 years of age. n/a, not available.
