[DEPcom]

"Antigen specific T cells don't come out of thin air."

I found this in the Article:

"Our team also tested uninfected healthy individuals and found SARS-CoV-2-specific T cells in more than 50 percent of them. This could be due to cross-reactive immunity obtained from exposure to other coronaviruses, such as those causing the common cold, or presently unknown animal coronaviruses. "

The person could have been exposed to some other less dangerous coronaviruses to generate those T cells.

I believe this is similar to the way they found the Smallpox vaccine. They found Cowpox a less dangerous form gave immunity to smallpox.

CDC Smallpox history

This could explain why the homeless people did not get infected in large numbers with Covid-19. A lot of people figure the homeless people would be wipe out. Maybe the homeless people have been expose to a coronavirus that now protects them from Covid-19. Just speculating possibilities.

[cpdiii]

I believe this is similar to the way they found the Smallpox vaccine. They found Cowpox a less dangerous form gave immunity to smallpox.

You are correct. It was noticed that Milk Maidens did not contract smallpox and that started the investigation. They discovered almost all had cowpox at one time and thus came the smallpox vaccine.

[mbs6]

This new data definitely fits as a puzzle piece into explaining quite a bit of what has been observed over these last months. It’s possible large swaths of people are not at much risk of developing serious infection, and may explain why so many cases are mild to non-existent.

[mbs6]

Thank you for sharing that about smallpox, I learned something new.

[ProtectOurFreedom]

Just yesterday I was reflecting on why the homeless haven’t been wiped out by COVID as was feared back in March and April. Does living in squalor without heat or AC get you exposed to lots of diseases that confer immunity? Even with compromised immune systems caused by living on the street?

This is quite remarkable.