The resident is an adult who has been fully vaccinated (which PPH considers a ‘breakthrough case’), with the source exposure unknown. Although rare, breakthrough cases can occur; they cause much milder symptoms than those in unvaccinated individuals according to PPH.
They continue to state that a series of outbreaks have been affecting regions throughout Ontario over the last few months, with neighbouring Health Units reporting cases. Still, the disease had not been identified within Peterborough until now. PPH has launched investigations to determine potential exposure locations and affected individuals.
PPH has identified the following known exposure locations (in following graphic):