Emerging Infectious Disease ISSN: 1080-6059

Bordetella pertussis Strains with Increased Toxin Production Associated with Pertussis Resurgence

Frits R. Mooi

, Inge H.M. van Loo, Marjolein van Gent, Qiushui He, Marieke J. Bart, Kees J. Heuvelman, Sabine C. de Greeff, Dimitri Diavatopoulos, Peter Teunis, Nico Nagelkerke, and Jussi Mertsola

Author affiliations: National Institute for Public Health and the Environment, Bilthoven, the Netherlands (F.R. Mooi, M. van Gent, M.J. Bart, K.J. Heuvelman, S.C. de Greeff, D. Diavatopoulos, P. Teunis); Maastricht University Hospital, Maastricht, the Netherlands (I.H.M. van Loo); National Public Health Institute, Turku, Finland (Q. He); United Arab Emirates University, Al Ain, United Arab Emirates (N. Nagelkerke); University of Turku, Turku (J. Mertsola)

Main Article

Appendix Figure

Temporal trends in the frequencies of pertussis toxin promoter 3 (ptxP3) strains, notifications, and hospitalizations. In this period, 99% of the strains harbored either ptxP1 or ptxP3. In November 2001, a preschool booster immunization was introduced, which may have reduced hospitalizations.

Appendix Figure. Temporal trends in the frequencies of pertussis toxin promoter 3 (ptxP3) strains, notifications, and hospitalizations. In this period, 99% of the strains harbored either ptxP1 or ptxP3. In November 2001, a preschool booster immunization was introduced, which may have reduced hospitalizations.

Main Article

Top of Page

The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.