Mixing Covid-19 vaccines tied to more side effects, early UK data suggests

People who got mixed doses of coronavirus vaccines — receiving a different vaccine type as a second dose than the first dose — appear to be more likely to experience mild side effects such as fever, chills, fatigue or headache, researchers in the UK reported Wednesday.People who got mixed doses of coronavirus vaccines — receiving a different vaccine type as a second dose than the first dose — appear to be more likely to experience mild side effects such as fever, chills, fatigue or headache, researchers in the UK reported Wednesday.