The Haliburton Kawartha Pine Ridge District Health Unit says it is taking steps to address a privacy breach affecting approximately 500 clients.
The health unit says the breach involves an email sent to local residents relating to COVID-19 vaccine appointments they had booked.
People receiving the emails were able to see the email addresses of all other recipients.
Medical Officer of Health Dr. Natalie Bocking says they are following up with people affected by the email and working to ensure the incident is not repeated.
The breach has also been reported to the Information and Privacy Commissioner of Ontario.
Anyone who may have received one of these emails is asked to delete it immediately and not to forward the message so the breach is not compounded.
If anyone needs to contact the Health Unit, they can do so by emailing info@hkpr.on.ca or calling 1-866-888-4577, ext. 5020.