Taking the first dose of Pfizer Covid vaccine and then AstraZeneca for the second can provide good protection against the pandemic virus, a study has found.
Taking the first dose of Pfizer Covid vaccine and then AstraZeneca for the second can provide good protection against the pandemic virus, a study has found. June 29, 2021 at 11:04PM https://ift.tt/2SD48eM
No comments:
Post a Comment