KGO ABC World News Tonight With David Muir September 15, 2021 22:40:00
Still, the debate heating up over whether booster shots are needed for everyone. >> yes, we should probably boost people who need it in that higher risk category, but for younger people, do we really have the science and data to say what's safe for a third dose or not? >> reporter: but dr. anthony fauci arguing that boosters could help slow transmission and reduce the rise of breakthrough infections. >> and so let's bring in whit johnson back with us tonight. and whit, we know a cdc panel is set to meet. any final decision from the fda and the cdc won't come until after that. so, bottom line h...