No worries with this one, really. But do keep your eyes peeled. Pathogens are everywhere. They just float around waiting for work. And they don't care if you think bread or cooked rice are safe.
Be afraid, be afraid, be afraid! Sounds like the TV news. Indeed pathogens are EVERYWHERE inside our bodies and outside. So what? That has always been true and we have always coexisted happily with them. Disease causing by pathogens is actually (relative to their omnipresence) a rare event and usually some kind of accident of over reaction of our bodies. Most people are carrying around pathogens most of the time and are unaware of it and are not sick.
That's why we have immune systems and assuming you are not immuno - compromised, the system works very well.
A long time ago I read a book, that was like 4" thick with the one word title Carcinogenesis
. About all the things that can cause cancer. I started reading it and started thinking, "oh X can cause cancer, I better avoid that. Oh Y can cause cancer, I better avoid that. Oh Z can cause cancer, I better avoid that." After you've been through the whole alphabet, you stop doing that. I just decided to not worry, live my life as healthy and happy as I can and not think about all the XYZ's. The worst thing you can do for your health is to be worrying and stressing all the time, very damaging.
When I was raising my son, I continued my why worry policy. When we would be out and he would drop his pacifier on the street, I would pick it up and lick the dirt off it and give it back to him. Nothing was ever sterilized (he never had any formula). He was rarely sick, had no asthma, allergies etc. Moms that were much more germ-phobic had kids that were sickly and allergic. So maybe the sickly kids caused moms to be worried, but maybe at least partly worried moms and sterile environments contribute to sickly kids. Our immune systems need something to do!
When I was very young and a junior scientist and first heard about Eastern medicine, with a disease causation theory all based on the balance of different principles of the body, I thought "that's stupid, we know germs cause diseases." It took me a while to realize, germs are always there. Whether or not we get sick from them is based on how well balanced and well functioning our bodies are and getting sick from the omni-present germs is in fact a sign that something is out of balance.