Covid-19 roundup: Moderna kicks off trial for Omicron-specific vaccine; EMA signs off on Pfizer pill

Just a day after Pfizer and BioNTech announced the start of trials for their Omicron-specific vaccine booster candidate, Moderna put out word that it too has begun testing an updated vaccine designed to target the variant.

The candidate, dubbed mRNA-1273.529, will be administered to two different cohorts of participants...

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