Biden says US 'prepared' for Omicron as Israel calls for 4th shots

President Joe Biden on Tuesday told Americans worried about the rapidly spreading Omicron coronavirus variant that the country was "prepared" to fight it, as Israel—which pioneered the use of COVID vaccine boosters—announced fourth shots for those over 60 and health workers.

source https://medicalxpress.com/news/2021-12-biden-omicron-israel-4th-shots.html