Moderna Covid Shots Can Be Spaced Up To 6 Weeks: WHO

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World Health Organization experts on Tuesday cautiously backed delaying second injections of the Moderna coronavirus vaccine in some situations, as they did for the Pfizer-BioNTech jabs.

The WHO’s Strategic Advisory Group of Experts on Immunisation (SAGE) also insisted international travellers should not be prioritised for any Covid-19 jabs for the time being.

During a meeting last week, the experts discussed the Moderna vaccine which, like that of Pfizer-BioNTech, uses mRNA technology and is being rolled out across the world.

Both vaccines require boosters after three to four weeks, but several countries facing limited vaccine supplies have said they will delay administering the second injection so that more people can benefit from receiving a first dose.

The WHO’s vaccine advisory group said it was best to respect the tested intervals between doses of 21 days in the case of the Pfizer-BioNTech vaccine and 28 days for Moderna.

But earlier this month, it said that in “exceptional circumstances” it was possible to wait for up to 42 days to administer the second dose of the Pfizer-BioNTech vaccine — and on Tuesday, it said the same for the Moderna jabs.

Head of the SAGE, Alejandro Cravioto, warned in a virtual press briefing though that “the evidence we have does not go beyond that” six-week cut off.

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