Don’t wait to get a booster shot.

That’s the overwhelming advice from 15 vaccine experts, infectious disease doctors and public health officials polled by Bloomberg after the rise of the new omicron variant sent vaccine-makers rushing to revamp their shots in case new versions are needed.

The highly mutated strain raises new questions about how well existing COVID-19 vaccines will hold up. But the experts cited a range of reasons for getting an additional dose now, including a lack of sufficient data about omicron, growing evidence about the benefits of boosters and the months that reformulated shots will likely take to become available.