Published in TB and Outbreaks Week, November 23rd, 1998
A study from that country found that protection against tuberculosis with bacillus Calmette-Guerin (BCG) waned with time in an African cohort and that revaccination was not useful ("TB Infection: An Exploratory Study of BCG Protective Properties and the Possible Role of Environmental Mycobacteria," Central African Journal of Medicine, June 1998;44(6):145-148).
Researcher V.N. Chihota and colleagues from the University of Zimbabwe evaluated the presence of environmental mycobacterial strains and explore the implications for...
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