Teacher - I heard that an astronaut got an infection while in space! How can that happen?

Your grandmother and my grandmother were both treated with the same medicine. Why is your grandmother recovering faster than mine?

Mummy: my vagina has bacteria growing in it?

Sir: why do my parents always tell me I need to eat more fruit and vegetables instead of pasta and pizza?

When do I start to have microbes on my body and how do I get them?

Are microorganisms important for our planet?

Why should I wash my hands before snack if we have been told that dirt is good for you?