Vaccine-induced Immunity Circumvented by Typical Mycobacterium tuberculosis Beijing Strains
Kristin Kremer , Marieke J. van der Werf, Betty K.Y. Au, Dang D. Anh, Kai M. Kam, H. Rogier van Doorn, Martien W. Borgdorff, and Dick van Soolingen
Author affiliations: National Institute for Public Health and the Environment, Bilthoven, the Netherlands (K. Kremer, B.K.Y. Au, D. van Soolingen); KNCV Tuberculosis Foundation, The Hague, the Netherlands (M.J. van der Werf, M.W. Borgdorff); National Institute of Hygiene and Epidemiology, Hanoi, Vietnam (D.D. Anh); Department of Health, Hong Kong Special Administrative Region, People’s Republic of China (K.M. Kam); University of Amsterdam, Amsterdam, the Netherlands (H.R. van Doorn, M.W. Borgdorff)
Figure 2. Proportion of atypical Beijing strains among persons with Mycobacterium tuberculosis Beijing clade strains in Vietnam, the Netherlands, and Hong Kong, by patient age. The data point of the >75-year age category from the data from Vietnam was omitted because the group contained only 1 patient.
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