Fine, but how do you know you have immunity? Kiss a guy with Ebola, and if you aren’t dead in a week, congratulations?
Sounds like the perfect task to give to this fruitcake:
I personally have long suspected that the “cure” for various ailments can be found in the people who don’t get it. There are people who never get the common cold, flu, cancer, whatever. It’s almost impossible to differentiate between good fortune and immunity, though.
Statistically I would guess that due to the wide variation in individual genetics that there are people who are immune to string viruses but don’t know it.
Exactly. How do you know?