Flu 2024 Cdc. Cdc uses the estimates of the burden of flu in the population and the impact of flu vaccination to inform policy and communications related to flu. On september 20, 2024, the food and drug administration (fda) approved the nasal spray flu vaccine, flumist, for self or caregiver administration.
A dual mutant flu variant has been identified in 15 countries, including two cases in the us, the cdc says. Children and 48.5% of u.s.