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Twenty people in north India have been given two different coronavirus jabs for their first and second doses.

They were given a shot of Covishield (AstraZeneca) in early April, but then got the locally developed Covaxin as part of their second dose in May.

India has not allowed the mixing of vaccines and studies are going on around the world to see if different doses can be safely administered.

Officials said the 20 people were healthy and had no

This post was originally posted on BBC News. Read the rest of the story at https://www.bbc.co.uk/news/world-asia-india-57264622.

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