The Mother Jones article is just the article I found when I googled, trying to find the original article I saw that I thought I had saved. Here are a couple of other articles (local FL media) discussing the situation which were in my history when I searched.
However neither specifically says that FL is last, so I guess I need to concede that claim as unverified, and I'm not sure how you can research it any more in depth at this point. I thought I remembered reading it and being struck by the negative effect of having a quack like Ladapo as the state Surgeon General...
Florida's study advising young men to avoid the COVID vaccines is hopelessly unscientific.
www.latimes.com
State report shows immunization rates among schoolkids dropping, with more parents than ever claiming religious and medical exemptions.
www.firstcoastnews.com
A rising number of Floridians are using religious exemptions to opt out of school vaccines for their kids — which poses health issues.
www.palmbeachpost.com
DeSantis is going to try and use the vaccine as a weapon against Trump in a GOP Primary, but I doubt trying to out Trump Trump is a recipe for winning the people he'd need to win a general election. I think he's the latest Scott Walker who was loved by Pubs but disliked intensely by others.