Banff 
As Canada’s COVID-19 cases are slowly trending up once again, the National Advisory Committee on Immunization (NACI) today recommended a second booster dose of COVID-19 vaccine to adults 80 years of age and older and also for residents of long–term care or other congregate living settings for seniors.
NACI says the revised guidance comes as protection against severe disease can potentially decrease over time following the first booster dose, and the risk of immune evasion by highly transmissible variants of concern can cause severe disease.
The advisory committee says a rapid deployment of a second COVID–19 vaccine booster dose program over the coming weeks is necessary for the said population.
In addition, NACI is also recommending a second COVID-19 booster dose for adults 70-79 years of age and for adults younger than 70 years of age in or from First Nations, Métis, or Inuit communities.
The committee suggests local public health agencies may aim to provide a second booster dose 6 months for adults 18 years of age and older after the receipt of the previous booster dose taking into consideration local and current epidemiology and recent COVID-19 infection.
Detailed guidance on a second booster dose of COVID-19 vaccines by NACI can be found here.
