Who should get a bivalent booster? How effective are they? How should people space out shots after infection, original strain boosters, and a host of other combinations of immunity and exposure? Can you get a bivalent booster and a flu shot at the same time and are there any benefits to spacing them out? How long did it take for us to get these boosters, and what’s the hope for longer-term immunity? Virologist Dr. Andy Pekosz talks with Stephanie Desmon about bivalents and answers listener questions sent to publichealthquestion@jhu.edu.