The original SARS virus of 2002-2003 never returned. There wasn’t a second wave. It must have mutated to a non-harmful state. Good thing because there weren’t medicines to combat it. Only Tamiflu seemed to work.
The Spanish Flu of 1918-20 came in waves for sure. The second wave was much more virulent than the first. It never returned after those years though.
Virologists say a virus mostly mutates to not kill its host, otherwise it will die out with the host.
Ohio Gov. DeWine expected to announce stricter lockdown orders at 2:00pm EST. Mega Church’s told to shut down and more!
SARS-COV was never very wide spread in the population and was contained before it became an epidemic. I doubt it mutated, as coronaviruses are pretty stable. The 4 corona viruses that cause common cold sysmptoms, (HCoV)-NL63, -OC43, -229E, and -HKU1 are all very much the same as the ones that infected people 30 years ago. MERS is still the same Camel virus that just happens to infect humans too. No one knows exactly where SARS1 came from, but it is almost certainly an animal virus like MERS, and just exists in some animal that people have little interaction with. SARS-COV2 is too widespread to put back in the bottle, and being a coronavirus, might not mutate enough to make a difference for a very long time.
Spanish Flu was a variant of H1N1. It’s still around.
“Virologists say a virus mostly mutates to not kill its host, otherwise it will die out with the host.”
Mutations are random. They can become more lethal - and burn out, or more mild and become not worth the bother. Spanish Flu is still with us today in a milder form.
Interesting.