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Mass. coronavirus at a glance |
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More recent vaccine stories


When to get your Omicron booster, and other things to know about the new shots

Here’s what to know about the new shots, now that the FDA and CDC have signed off.

US clears updated COVID boosters targeting newest variants

The move by the Food and Drug Administration tweaks the recipe of shots made by Pfizer and rival Moderna that already have saved millions of lives.

Moderna sues Pfizer and BioNTech over COVID vaccine patents

The lawsuit marks the biggest legal battle yet over who owns key inventions used in mRNA technology.

Moderna sues Pfizer-BioNTech, alleging coronavirus vaccine patent infringement

The suit sets up a legal battle between the most prominent companies that helped curb the pandemic in the United States by developing highly effective shots in record time.

Here’s what you need to know about the new Omicron boosters.

Pfizer and Moderna have submitted their updated COVID vaccines to the FDA, but questions remain about how well they will work.

British regulator first to authorize Moderna’s updated COVID booster

Each dose of the booster shot will target both the original COVID-19 virus that was first detected in 2020 and the Omicron BA.1 variant that was first picked up in November.

Drugmakers hunt for one vaccine to target all COVID variants

At the end of July, Pfizer and BioNTech started trials of new shots that fight multiple COVID strains at once. This is the beginning of the new strategy to generate longer-lasting immune responses.

New study based on Mass. schools finds masks protected students, staff from COVID-19

A study comparing the experience of Massachusetts schools that maintained masking requirements early this year with those that dropped them has provided new evidence that masks are beneficial in protecting students and staff from COVID-19.