China in 1500 has nothing to do with a concerted 20th century effort to eradicate smallpox.
Covid is of tge same order as the flu. You can get the flu shot every year -- the flu is not going anywhere.
I know that & never stated otherwise. I was just giving a precis of treatments against smallpox.
Like I said it depends on where you start from. If you decide to start from 1796 when a smallpox vaccine was first created in the UK or even say the early 19th century when some European countries made an effort to mass vaccinate, you are still looking at circa 180yrs to eradicate smallpox.
Or if you want to take the 20th century modern vaccinations only then you are looking at Leslie Collier's (UK again) vaccine from the 1940-1950's which became the standard form of the vaccine adapted by the WHO when the WHO initiated its global smallpox eradication campaign around 1967.
So from 1967 to 1978 is 11yrs ...& we're only a couple of years into Covid....got a few more years to do!!
As for comparing COVID to flu......HORRAY!!!...another person who "gets it"......the way it spreads on your exhaust breath is like the flu...the way it adapts & spreads etc is like the flu....However, it is not the flu & it causes more damage to the lungs etc. than the flu ever did even before "flu jabs"....
Yes, flu used to kill loads of people, & still does in its various forms, just COVID is way worse in terms of damage to the body if you survive a bad case of it.
The problem that has occurred in the Governments & press around the world is that whilst saying "its like the flu" is wrong its partially correct (as above). Calling it "like the flu" also plays down the more aggressive effects of COVID if you catch it. Catch -22 they don't want to panic everybody...then they have to panic everybody as the medical lot are seeing the hospitals swamped & then the industry's want everybody to spend money to "save the economy" so they tell everybody "take the mask off & party"...
That's the problem with most modern societies...money first...people last...