a new recommendation from the National Advisory Committee on Immunization (NACI) about what should follow a first dose of AstraZeneca.“An mRNA vaccine should now be offered as the second dose for individuals who received a first dose of AstraZeneca or COVISHIELD vaccine,” Canada’s chief public health officer Dr.
Theresa Tam said on Thursday.Earlier this month, NACI said those who received a first dose of AstraZeneca could opt for a second dose of either AstraZeneca or one of the mRNA vaccines, such as Pfizer or Moderna.Alberta Health spokesperson Tom McMillan said the “vast majority” of those who have received a first dose of AstraZeneca in Alberta have opted for a second dose of mRNA vaccine.However, Albertans who received a first dose of.