National Advisory Committee on Immunization

The National Advisory Committee on Immunization (NACI) is a Canadian advisory body operating within the Public Health Agency of Canada (PHAC).¹⁾ It is tasked with “providing guidance on the use of vaccines currently or newly approved for use in Canada to the Government of Canada.”²⁾

NACI was formed in 1964.³⁾

On April 23, 2021, NACI recommended the AstraZeneca-Oxford COVID-19 vaccine be offered to “all Canadians over the age of 30, but only when the benefits outweigh the risks of rare, serious post-vaccine blood clots.”⁴⁾

On June 29, 2022, NACI issued guidance recommending “booster doses” of COVID-19 vaccines for all “Canadians at increased risk of serious illness from COVID-19”, regardless of how many doses they had previously received.⁵⁾

On March 3, 2023, NACI called for “high-risk individuals” to receive another booster dose in the spring.^{6) 7)}