Mystery #3Tier 2microbes / immune system
Why can you catch cold after cold, even after having one just last month?
You suffered through a rotten cold just last month, all blocked nose and sore throat. Your body beat it in the end. So it feels deeply unfair to be sniffling all over again already. Shouldn't beating a cold protect you from the next one, the way it does with chickenpox?
Your guess
Why do you think beating one cold doesn't seem to stop the next one coming along?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.