Canada will soon allow vaccine mixing for second doses.
By BY IAN AUSTEN
World
https://ift.tt/3vQU28o
An advisory body approved following up AstraZeneca shots with either Pfizer-BioNTech or Moderna vaccines.
New York Times
internal-essential, Vaccination and Immunization, Drugs (Pharmaceuticals)
June 2, 2021 at 10:13PM