Moderna moving ahead with two Omicron vaccine candidates against newer variants

Moderna to advance two Omicron vaccine candidates against newer variants Moderna Inc said on Monday it was advancing two Omicron vaccine candidates for the fall, one designed against the BA.1 variant and another against the BA.4 and BA.5. Reuters Reuters

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Vaccine makers including Moderna and rival Pfizer Inc are developing updated vaccines to target the fast-spreading Omicron subvariants BA.4 and BA.5, which have gained a foothold in the United States over recent weeks.

Moderna said its decision to develop the bivalent vaccines was based on different market preferences for shots against the subvariants.

Bivalent vaccines are designed to target two different coronavirus variants - the original variant from 2020 and the newer Omicron variants.

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