First published at 20:33 UTC on April 10th, 2021.
9/04/2021
No data currently available on mixing COVID vaccines: WHO
The WHO reiterated Friday there was "no adequate data" on switching Covid-19 vaccines between doses, after France said under-55s who received an AstraZeneca first jab sh…
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9/04/2021
No data currently available on mixing COVID vaccines: WHO
The WHO reiterated Friday there was "no adequate data" on switching Covid-19 vaccines between doses, after France said under-55s who received an AstraZeneca first jab should get their second from a different vaccine.
The World Health Organization has called for studies on so-called mixing and matching between vaccines, but said there was no comprehensive data so far on which it could make any recommendations.
The UN health agency therefore recommends that the same product should be used for both doses.
All COVID-19 vaccines are for emergency use only and are experimental drugs
What does emergency use of a COVID-19 vaccine mean? It's when regulators allow shots to be given to people while studies of safety and effectiveness are ongoing.
Before any vaccine is permitted, it must be reviewed by the Food and Drug Administration, which requires study in thousands of people. Normally, the process to approve a new vaccine can take about a decade.
Vaccines like Moderna. Pfizer, Asrazeneca, Johnson & Johnson etc have never been used in human population before and the effects are unknown.
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