Canadians should get another COVID-19 vaccine booster in the fall if itB次元官网网址檚 been at least six months since their last dose or COVID-19 infection, the National Advisory Committee on Immunization (NACI) said on Tuesday.

B次元官网网址淏ooster doses in the fall will be formulations updated to target more recent, immune-evasive SARS-CoV-2 variants,B次元官网网址� the NACI statement said.

B次元官网网址淚ndividuals vaccinated with the updated formulation are expected to benefit from a better immune response against these variants compared to current vaccines,B次元官网网址� it said.

NACI continued to strongly recommend that anyone five years of age and older who hasnB次元官网网址檛 yet been vaccinated should be immunized with a primary two-dose series of an mRNA vaccine.

It also issued a B次元官网网址渄iscretionary recommendationB次元官网网址� that children six months to five years of age who havenB次元官网网址檛 yet been vaccinated get the two-dose primary series of an mRNA vaccine.

The bivalent Omicron-containing mRNA vaccines can be used for people receiving their first two-dose vaccination series, NACI said.

Immunization this fall is B次元官网网址減articularly important for those at increased risk of COVID-19 infection or severe disease,B次元官网网址� NACIB次元官网网址檚 statement said.

Those vulnerable groups include people aged 65 and older, residents of long-term care homes or other group living settings, people with underlying medical conditions, people who are pregnant, people from First Nations, M茅tis and Inuit communities, people who are racialized and people who provide essential community services, it said.

The mRNA vaccines available in Canada are manufactured by Pfizer-BioNTech and Moderna.

Although mRNA COVID-19 vaccines are B次元官网网址減referred,B次元官网网址� NACI said NovavaxB次元官网网址檚 Nuvaxovid should be offered as a booster to adults 18 years of age and older who are B次元官网网址渦nwilling or unable to receive an mRNA vaccine.B次元官网网址�

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