We obtained RFLP results for 288 of the culturepositive cases. We found that 243 isolates
had at least 5 bands: 183 unique isolates, 43 near-identical isolates and 17 identical …

Objectives: To characterize by restriction fragment length polymorphism (RFLP) patterns, the
distribution of different Mycobacterium tuberculosisstrains isolated consecutively from 75 …

To assess the circumstances of recent transmission of tuberculosis (TB)(progression to
active disease< 2 years after infection), we obtained DNA fingerprints for 1,172 (99%) of …

Megan B. Murray lead to transmission of airborne infectious diseases. The 2 studies of
tuberculosis transmission reported in this issue (pages 349 and 353) highlight some of these …

OBJECTIVE: To define the molecular epidemiology of TB in western Canada, and in
particular the risk factors for clustering. MEASUREMENTS: We prospectively identified all …

BACKGROUND: We examined the molecular epidemiology of tuberculosis (TB) in San
Francisco during a 13-year period encompassing the peak of TB resurgence and …

Setting: During the 1980s, New York City experienced a rapid increase of tuberculosis
cases, more than 40% of which were human immunodeficiency virus (HIV)-associated …

Background To describe the demographic and geographic distribution of tuberculosis (TB)
in Manitoba, thus determining risk factors associated with clustering and higher incidence …

Background The epidemiology of tuberculosis in urban populations is changing. Combining
conventional epidemiologic techniques with DNA fingerprinting of Mycobacterium …

Background Understanding regional molecular epidemiology allows for the development of
more efficient tuberculosis prevention strategies in low-incidence settings. Methods We …