* The CDC has recommended that children 5 to 11 get a 3rd dose of the Pfizer-BioNTech coronavirus vaccine to boost immunity as cases and hospitalizations tick upward.
* Researchers are investigating whether infected animals might become reservoirs for the evolution of new variants.
* The U.S. is averaging more than 100,000 known cases per day for the first time since February.
* Total U.S. population that is fully vaccinated: 67 percent. Total Florida population that is fully vaccinated: 67 percent.
* Total U.S. population that is boosted: 31 percent. Total Florida population that is boosted: 27 percent.
* Positivity rates: Florida—16.9 percent; Hillsborough County—13.1 percent.