Pfizer jab less effective in children aged five to 11, study shows - Sydney Morning Herald

Experts speculate that the Omicron variant or a lower dose of the vaccine could be to blame for its rapidly decreasing protection against infection with COVID-19.

It appears in reducing the dose for a potentially better safety outcome they appear they have lost an immunogenicity protection outcome, he said. Using a third of the dose in people who are only a fe… [+2302 chars]

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