Please tell me when a virus is not active in a population? Foolish
Smallpox in the USA you complete FOOL.
You're a dumbazz, and a troll.
Oh and Polio, you know, the example I used above, you FOOL.
That's two. Do you need more evidence to prove you ARE a COMPLETE FOOL?
There are case of both of those diseases in the world. look it up fool.
You prove once again what a FOOL you are. I specifically stated "in the USA" you idiot. Once you have eliminated the circulation of a virus inside a country, and have protective measures in place to keep it out, you can then use a non-sterilizing vaccine. Any Virologist would tell you the same. It is also very easy to find that "fact" online with just a little DD.
Again, you making the above statement proves you're a troll, and have absolutely no clue what you speak of.
"He is far from Stupid"
”person, who happens to have an above-average level of intelligence”