Moderna says booster dose produces strong antibody response against Omicron

A half-dose lifts antibody levels 37 times higher than response after two doses

The company also tested a 100 microgram dose which it said increased antibody levels approximately 83-fold compared to pre-boost levels. Picture: Getty

A third dose of Moderna’s Covid-19 vaccine increased antibody response against the Omicron variant, results released by the company today said, as it works to design a strain-specific dose.

The US biotech said its half-dose booster increases antibody levels 37-fold, compared with people who received just two doses.

The company also tested a 100 microgram dose which it said increased antibody levels approximately 83-fold compared to pre-boost levels.

The results come as Ireland’s booster campaign ...