🧬Mutatesflu viruses change their surface proteins a little each year (drift)

🔄New shotscientists predict next season’s strains

📅Seasonin Canada, flu peaks Dec–Feb

👵At riskbabies, seniors and people with chronic illness

🧼Preventionvaccine, handwashing, cough into elbow

💊Treatmentrest, fluids; antivirals for some