Where in Canada are fourth COVID vaccine doses being offered and to whom?

As more transmissible COVID-19 variants continue to emerge and experts warn of the potential for waning effectiveness of vaccines against severe disease, health officials are advising provinces and territories to begin rolling out fourth doses, or second booster shots, to Canadians.

Canada's National Advisory Committee on Immunization (NACI) recommended on April 5 that provinces and territories get ready to offer fourth doses of COVID-19 vaccines in the coming weeks, starting with people over the age of 80 and long-term care residents.

NACI also advised that a second booster be offered to people between 70 and 79 years of age, and to people from First Nations, Metis and Inuit communities, roughly six months after receiving their first booster shots.

However, several provinces have already started offering a fourth dose to higher-risk groups with plans to expand eligibility soon. CTVNews.ca takes a look at where in Canada second booster shots are being offered and to whom.

British Columbia is offering a fourth dose of COVID-19 vaccines to seniors, starting with residents of long-term care and assisted-living homes, six months after receiving their third shot.