Can You Get the Flu Twice in One Season? Understanding Recurrence

Yes, you can catch the flu more than once per season. The influenza virus mutates constantly, producing new strains that evade prior immunity.

Key Facts

• Immunity to one strain doesn’t protect against others.
• Reinfection can occur as soon as 3 months after the first illness.
• Different strains circulating simultaneously make dual infections possible.

Prevention Strategies

• Annual flu vaccination (updated for current strains)
• Frequent handwashing
• Avoid close contact with sick individuals
• Cover coughs and sneezes
• Stay home when ill until fever‑free for 24 hours

Vaccination remains the single most effective way to reduce risk and severity.