2017-2018 Flu Season Overview
The 2017-2018 flu season was a severe season in the United States. The CDC reported high levels of outpatient illness and hospitalization. The season peaked around February 2018 and remained elevated for several weeks.
Dominant Strains and Vaccine Match
Influenza A(H3N2) viruses predominated during the 2017-2018 season. The vaccine was updated to match circulating strains, but effectiveness was moderate. The CDC provides annual vaccine composition recommendations based on global surveillance data.
Symptoms, Prevention, and Treatment
Common symptoms include fever, cough, sore throat, and body aches. The CDC recommends annual vaccination, frequent handwashing, and staying home when sick. Antiviral drugs can reduce severity if taken early. For more details on seasonal flu, visit the CDC flu page.
