that omicron is coming. and it's pretty clear, if you needed one more reason that boosters help a lot in terms of protection against omicron. because that's not that great with the original two doses of pfizer from the data we saw yesterday. but you get the booster in there, and you're in much better shape. >> a good warning and a great message. dr. collins i have to ask you to fact check this. senator ron johnson, and to be clear, you're about to hear a clip where it's him yesterday, and then offering some level of clarification today. roll it. >> standard gargle of mouth wash has been proven to kill the coronavirus, even if you get it, you may reduce viral replication. >> i'm telling people to take it seriously and do what you can to boost your immune system. eat healthy, a host of vitamins, an nih study that says mouth wash can help reduce viral replication in the first day. >> he cites an nih study. you're the top dog at the nih.