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What is the Delta Variant & Should You Be Concerned? Hint: mRNA Vaccines Help, A Lot

Boston Herald

Photo: Boston Herald

The virulent Delta coronavirus variant, first found in India and now spreading across the globe, appears to be more contagious — but is no match for mRNA vaccines.

“We know without question that both doses of Pfizer, both doses of Moderna are extremely protective, almost fully protective” against the Delta variant, said Dr. Shira Doron, infectious disease physician at Tufts Medical Center. She said there is little known at this point about Johnson & Johnson’s protection.

A Tuesday announcement from Cambridge-based Moderna stated that a recent study showed vaccination with the company’s mRNA vaccine produced ...