Disease can spread through different modes, just like how you pass your favorite toy to a friend.
Imagine you're playing with your best friend in the park. If you sneeze near them, they might catch a cold, that’s airborne transmission. It's like blowing invisible confetti into the air, and if someone breathes it in, they get the same germs.
If you share a juice box with your friend, and you both have a germ called "sneezy bug," that germ can jump from one cup to the other, that’s direct contact transmission. It's like passing a sticky note with a secret message, but instead of a message, it's a germ.
Sometimes, germs can live on your favorite toy or your lunch table. If you touch that toy and then touch your face, you might get sick, that’s indirect contact transmission. It's like leaving fingerprints on something, and then touching your nose with those same fingerprints.
If someone has a wound and another person touches it without washing their hands, the germs can go from one hand to the other, that’s vehicle transmission, like sharing a germ-filled snack bag.
Each way germs travel is a different mode of transmission, just like each toy has a special way to be passed around.
Examples
- Someone coughs near you on the bus, and you start feeling unwell later that day.
- You touch a doorknob that someone with a cold touched before you.
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See also
- How do infections spread?
- Is the US prepared for future contagious pathogen outbreaks?
- How do vaccines protect our bodies from infectious diseases?
- How do mRNA vaccines protect us from infectious diseases?
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