Whooping cough (pertussis) cases and outbreaks in various countries

Whooping cough (pertussis) cases and outbreaks are being reported from the following countries:

  • USA - on-going outbreak of infections in California with another infant death reported; in 2014, 20,000 cases nationwide
  • Canada - in Alberta, 128 confirmed cases in 2014 and 1 case so far in 2015.
  • Australia - in 2014, 4,606 cases nationwide; infections increasing in Victoria but decreasing in Queensland, New South Wales.

Pertussis cases have increased throughout most of the world due in part to increased virulence and other genetic changes in the circulating strains as well as decreased immunity over time. Outbreaks of pertussis (whooping cough) can occur anywhere in the world at anytime. Travellers can reduce their risk of exposure to this disease by ensuring that their childhood vaccinations and their current immune status for pertussis are up-to-date prior to travelling.

Visit our Health Library for more information on exposure to and the prevention of Whooping Cough.

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