finding solutions. this is abc7 news. ♪ >> the fda this option will help save lives. >> i would not be surprised that we would require an intermittent boosting. reggie: are you ready for a fourth jab for some and possible yearly booster shots to keep covid-19 at bay? thanks for joining us. >> the cdc has now recommended another booster shot for certain immunocompromised people and those over age 50. it is only if you received your initial booster at least four months ago. larry: the omicron subvariant ba.2 is the dominant strain in the u.s.. it accounts for nearly 55% of new cases. starting friday, you no longer need proof of vaccine or a negative covid test to attend events at sap center in san jose or chase center. >> we spoke to experts who believe a second booster could be authorized for the general public in a matter of months.