National Advisory Committee on Immunizations

Why 4th Covid-19 vaccine dose?

eAwaz Medicine

Ontario – As the highly transmissible Omicron variant of COVID-19 surges across the country, Canada’s National Advisory Committee on Immunization (NACI) has recommended that moderately or severely immunocompromised Canadians may receive a second booster or fourth shot at least six months after their last dose. “Many of these individuals are at a higher risk of severe outcomes of COVID-19 and also at increased risk of decreasing protection over time since vaccination,” NACI said in its updated guidance released on Dec. 3. Besides long-term care homes, the Ontario government is making fourth doses available to residents of the province’s retirement homes, elder care lodges and other congregate settings.