The real truth is that unless you live in a bubble, it is impossible to avoid germs. And, germs, bacteria, viruses, fungi, are EVERYWHERE.
Remember your morning train ride into work? That guy sitting next to you just kept coughing and didn’t cover his mouth. You were unfortunately exposed to any number of common cold viruses or worse, bacterial pneumonia.
Prescription antibiotics have been around since the 1940s. Antivirals and antifungals came later. All of these medications have been greatly overused, allowing germs to “outsmart” modern science and become resistant. The medical establishment is currently running out of ways to treat many types of infections.