Eli5 if disease’s want to live in a host’s body without being discovered, then why do they have such nasty symptoms that can be used to easily identify and destroy them?

Question

Eli5 if disease’s want to live in a host’s body without being discovered, then why do they have such nasty symptoms that can be used to easily identify and destroy them?

In: 106

Answer 1

When you get up and have breakfast a whole bunch of things happen because of that that you didn’t mean to happen, like the dog woke up with you and started chewing things, the lights you turned on increased the power bill, the neighbours see the smoke from your toast and call the fire departement, the smell of bacon woke up your family… You didn’t do these things and you didn’t mean to, you just wanted breakfast but because of these other things that happened now everyone knows that you’re there.
Germs just want to eat and spread, they don’t know or care about what happens to you.