PITTSBURGH (KDKA) — Move over, BA-4 and BA-5, there’s a new COVID-19 variant that’s spreading even as the push is on for the current round of boosters.

The word from the experts is to get the booster and don’t let your guard down. KDKA’s John Shumway spoke with CBS News medical expert Dr. David Agus — and some of what he had to say is a bit disconcerting.

Alpha, Beta, Gamma, Delta, Omicron, BA-4, BA-5, and now comes BF-7.