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Volume 23, Number 4—April 2017
Dispatch

Significant Decrease in Pertactin-Deficient Bordetella pertussis Isolates, Japan

Yukihiro HiramatsuComments to Author , Yusuke Miyaji, Nao Otsuka, Yoshichika Arakawa, Keigo Shibayama, and Kazunari Kamachi
Author affiliations: National Institute of Infectious Diseases, Tokyo, Japan (Y. Hiramatsu, Y. Miyaji, N. Otsuka, K. Shibayama, K. Kamachi); St. Marianna University School of Medicine, Kawasaki, Japan (Y. Miyaji); Nagoya University Graduate School of Medicine, Nagoya, Japan (Y. Arakawa)

Main Article

Figure

Temporal trends in the frequency of pertactin-deficient isolates and changes in multi-locus variable-number tandem repeat analysis types (MTs) in the Bordetella pertussis population in Japan. Pertactin production (A) and MTs (B) were analyzed for 232 B. pertussis isolates collected from January 2005 through June 2016. The frequencies of pertactin-deficient isolates and 2 major MTs (MT27 and MT186) are shown by time period. For convenience, minor MTs (MT194, MT224–226, and MT314–316) are included

Figure. Temporal trends in the frequency of pertactin-deficient isolates and changes in multi-locus variable-number tandem repeat analysis types (MTs) in the Bordetella pertussis population in Japan. Pertactin production (A) and MTs (B) were analyzed for 232 B. pertussis isolates collected from January 2005 through June 2016. The frequencies of pertactin-deficient isolates and 2 major MTs (MT27 and MT186) are shown by time period. For convenience, minor MTs (MT194, MT224–226, and MT314–316) are included as “others.”

Main Article

Page created: March 16, 2017
Page updated: March 16, 2017
Page reviewed: March 16, 2017
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