* Nearly 54 percent of the world population is fully vaccinated, according to Our World in Data. Nearly 62 percent have received at least one dose.
* Russia has fully vaccinated 49 percent of its population.
* The FDA announced that the vaccine for kids under 5 has been delayed until at least mid-April.
* According to the CDC, booster shots of the Pfizer-BioNTech and Moderna vaccines lose substantial effectiveness after about four months—but were still effective in keeping people out of the hospital during the omicron surge.
* In Florida omicron-related infections have fallen by nearly 50 percent in the past two weeks.
* Hillsborough County is still operating these testing sites: Adventure Island, Hillsborough Community College Brandon, Progress Village Park and the West Tampa Community Resource Center.