Flu Symptoms 2024 Vomiting In Adults. Flu will often get better on its own, but it can make some people seriously ill. On september 20, 2024, the food and drug administration (fda) approved the nasal spray flu vaccine, flumist, for self or caregiver administration.
Fever occurs in about half of patients. Type a influenza is a common infection that can cause widespread flu outbreaks.