As the administration of Gov. Ron DeSantis prepares to make Florida the first state to remove school vaccine mandates, deep concern is spreading among doctors, parents and public health workers for the safety of children and others who might be vulnerable in a disease outbreak.

They fear that dreaded diseases, held in check for decades by vaccines, could flare up again if too many people in Florida aren't immunized. Here's what to know:

°µÍø½ûÇø. All rights reserved.