Pertussis is an acute infection of the respiratory tract caused by the bacteria Bordetella pertussis. It is transmitted through respiratory droplets spread during coughs and sneezes from an infected person. Symptoms begin with a mild respiratory illness, which progresses to prolonged cough episodes, which may lead to vomiting. In Ontario, a vaccine series to prevent pertussis is started in infancy with booster doses in adolescence and adulthood.
To obtain or inquire about an immunization record, or for general immunization information, please contact your local public health unit.
PHO Rounds: Updates on Influenza, COVID-19, and RSV for the 2023-24 Season
This session will provide an overview of respiratory virus activity in Ontario and Canada during the 2022-23 season and the southern hemisphere’s 2023 season.