Video: WHO warns against 'mixing and matching' Covid vaccines

World Health Organization has warned against the mixing of doses of the Covid-19 vaccine. 

Terming it as a dangerous trend, the WHO Chief Scientist Soumya Swaminathan said there was limited data available about the implications of administering two different shots of the vaccine. 

Swaminathan said that the situation in countries would turn chaotic if people start taking decisions themselves with regard to who gets vaccinated when.

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