Final answer:
The girl is preventing the spread of the flu by covering her nose and mouth with a tissue and staying home.
Step-by-step explanation:
Flu, short for influenza, is a contagious respiratory illness caused by influenza viruses. It spreads through the air when someone infected with the flu sneezes or coughs. This cartoon showcases a girl sneezing into a tissue and staying home to prevent spreading the flu to others. Covering the nose and mouth with a tissue while sneezing and staying home when sick are effective ways to prevent the spread of the flu.