>>12257734There is always a cause to disease, but it is never from a "virus". viruses literally can't survive outside the body anyway.
If someone is "perfectly healthy(how do you know that they are? Blood tests? lmao)" and gets a disease, they have could have taken in toxins from their environment, food, water, air, chemicals etc. Not viruses from other people.
Not a single human being on the planet earth has made another person sick by coughing out phlem or aerosols. Never.
Terrain theory has been proven beyond a doubt. Terrain theory scientists would drink all the "viruses" known to man one by one including measels, rubella all that shit. And not a single case of people getting sick.
https://australiannationalreview.com/lifestyle/what-really-makes-us-sick-the-terrain-or-the-germ/ 