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WHO warns against mixing and matching COVID vaccines

epa09019292 A health care worker receives the Johnson & Johnson Covid-19 corona virus vaccine, Cape Town, South Africa, 17 February 2021. The vaccine has been approved by South African Health Products Authority and is expected to only be given to health care workers. The consignment will be moved to a secure facility before being distributed overnight to the various vaccine centres in all provinces. EPA-EFE/GIANLUIGI GUERCIA/POOL BEST QUALITY AVAILABLE

The World Health Organization’s chief scientist on Monday advised against people mixing and matching COVID-19 vaccines from different manufacturers, calling it a “dangerous trend” since there was little data available about the health impact.

“It’s a little bit of a dangerous trend here. We are in a data-free, evidence-free zone as far as mix and match,” Soumya Swaminathan told an online briefing.

“It will be a chaotic situation in countries if citizens start deciding when and who will be taking a second, a third and a fourth dose.”

via Reuters

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