AstraZeneca vaccine for their first dose may be given a choice as to what vaccine they receive for their second.Provincial health officer Dr.
Bonnie Henry said Thursday there are many studies happening right now around the possibility of mixing COVID-19 vaccines.“I know some people have concerns about using that term ‘mix and match,'” Henry said at a briefing. “And it is something that is an important consideration because there may be benefits to using two different types of vaccines.“And one of the things that we are learning is that the AstraZeneca vaccines do seem to have a stronger cell immunity response — those cells that help us have a long-term memory.