Moderna Booster Shot Bolsters Antibodies Against Variant Strains

Moderna Inc.’s Covid-19 booster shots gave positive results against immune system-evading strains that emerged in South Africa and Brazil, according to early results from a mid-stage trial.

Two types of booster shots studied spurred higher levels of virus-halting antibodies against the variant strain P.1 that ravaged Brazil as well as B.1.351, common in South Africa, Moderna said in a statement. One of the boosters is an additional low-dose shot of its existing vaccine, while the other type is customized against the South Africa strain.

Moderna co-founder Noubar Afeyan talks about their Covid vaccine booster shots.

Source: Bloomberg)

Scientists and drugmakers are moving rapidly to head off the rise of coronavirus variants ...