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Coronavirus: Mixing and matching vaccines a 'dangerous trend', advises WHO chief scientist


World Health Organization’s chief scientist Soumya Swaminathan on Monday advised against mixing and matching coronavirus vaccines from different manufacturers, calling it a “dangerous trend”, reported Reuters.
“We are in a data-free, evidence-free zone as far as mix and match,” Swaminathan said at 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.”
Mixing and matching Covid-19 vaccines is a method of immunisation in which two doses of the shot from different manufacturers are given to a beneficiary. Most vaccines currently in use, including those of Pfizer, AstraZeneca and Bharat Biotech, are all required to be administered in two doses with the prescribed intervals between the shots differing for each vaccine. ....

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Can you mix and match Covid-19 vaccines? Here's what studies say


Can you mix and match Covid-19 vaccines? Here’s what studies say
hindustantimes.com | Written by Meenakshi Ray, New Delhi
© Provided by Hindustan Times
The decision to allow the mix and match combinations of the two different Covid-19 vaccines has come amid supply delays and safety concerns. (AP File Photo)
Several studies conducted to test the efficacy of switching Covid-19 vaccines are underway and the latest research last month said that mix-and-match inoculation, where a shot of Pfizer s vaccine was given after an AstraZeneca shot, produced more antibodies than two AstraZeneca jabs. Several countries like the UK, Canada, Italy and the UAE are among those that have allowed mix-and-match inoculation, which scientists hope will have benefits. The decision to allow the mix and match combinations of the two different Covid-19 vaccines has come amid supply delays and safety concerns. ....

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