New Moderna tests suggest its booster works to prevent omicron

Cambridge drugmaker Moderna Inc. on Monday announced lab test results showing that its booster shot of the Covid-19 vaccine increases neutralizing antibody levels against omicron approximately 37-fold compared to pre-boost levels. The data corresponds to the current booster dosage of 50 micrograms, which is half the size of the original shot. The company also reported that a 100 microgram booster would increase antibodies 83 times. Moderna's (Nasdaq: MRNA) shares were up more than 5% in pre-market…