Um, that's why you gut them and throw out that stuff.
And BTW do you not think any water you drink didn't at one time or another having something pooing in it?
I only drink spring water... Zephyrhills to be specific... it comes from a deep aquifer.
Once water has been evaporated into clouds, that's distillation which removes everything that's not a water molecule. Therefore rain is safe, although not very yummy without the minerals.
And once rain falls and percolates through layers of earth and limestone rock (here) it's rendered poo free.
Tap water is poo water. #JustSayNoToPooPoo