Sri Lanka gives Pfizer shots to some as 2nd dose
Published
Mixing two vaccines is still being studied for its effectiveness, but Sri Lanka health officials approved it due to a severe AstraZeneca shortage.
Full ArticlePublished
Mixing two vaccines is still being studied for its effectiveness, but Sri Lanka health officials approved it due to a severe AstraZeneca shortage.
Full ArticleCOLOMBO, Sri Lanka — Sri Lanka is administering Pfizer shots to people who were left waiting after receiving their first..