clearly, solid organ transplant recipients, they take medications to suppress their immune system so that their own immune system does not attack their new transplanted organ, right? so they are clearly on that list. but there are other people on the list as well. people who may recently had chemotherapy, immuno suppressants because of auto immune disease. they need to define that clearly but it's going to make a big difference in millions of people's lives, i think. in fact, i want to introduce you to a patient who has been struggling with this and is probably now going to live a different life after this is officially passed by the cdc. take a look. ♪ 39-year-old kimberly got her second dose of the covid-19 vaccine back in february. she hoped at the time it would be a game changer. >> i knew there was a possibility that it would not work for me. but given the situation with covid and the pandemic, it was definitely worth the try.