Which practice is most effective to prevent the spread of infections in a classroom?

• A. Hand washing
• B. Sharing cups
• C. Skipping hygiene practices
• D. Ignoring sick children

Answer: (A)

The key idea is that hand hygiene is the most effective way to stop infections from spreading in a classroom. Hands pick up germs from touching People, desks, toys, and other surfaces, and then can transfer those germs to the mouth, nose, or eyes. Washing hands with soap and water for about 20 seconds physically removes germs, breaking the chain of transmission. In a school, this simple practice dramatically lowers the spread of common infections like colds, flu, and stomach bugs, especially at times when germs spread most—before meals, after using the bathroom, after coughing or sneezing, and after playing outside or sharing materials.

Sharing cups can transfer germs via saliva, skipping hygiene practices means germs aren’t being removed, and ignoring sick children allows illnesses to spread more easily. So hand washing stands out as the most effective single habit to keep students healthier.