The U.S. Centers for Disease Control and Prevention (CDC) said that of the 43 cases attributed to Omicron variant, 34 people had been fully vaccinated. Fourteen of them had also received a booster, although five of those cases occurred less than 14 days after the additional shot before full protection kicks in.

“While the numbers are very small, they add to growing concerns that current COVID-19 vaccines may offer less protection against the highly transmissible new variant.”

https://www.msn.com/en-us/health/medical/most-reported-us-omicron-cases-have-hit-the-fully-vaccinated-cdc/ar-AARH7wE