Based on what I've seen on the news, some of the HCWs in Wisconsin have volunteered for some of the clinical trials for the vaccines. Perhaps she's electing to participate as well? That's a valid point. The wording made it seem like it was not trial based, but that makes the most sense. And here is an article about it. It doesnt sound like a trial. https://www.nbcmiami.com/news/local/south-florida-hospital-covid-vaccine/2326173/