Did you already know about covid-19?

In the netflix episode my secret terrius the corona virus occurs in the tenth episode (minute 53:12) although the series only came out in 2018. Did you know about the corona virus beforehand? Will there be a bad dimension? As a result, it is said that 90% of the world's population will go for it.

There are several corona viruses, 5 believe

So yes, you know about Corona… It kills people every year

But Covid, new you is a mutation

In 2002 there was already a Corona case '(Covid-2) in China.

However, this is about the virus family, this time Covid-19 is an unknown mutation with new binding molecules to the cell.

Corona is a group of viruses that have been known for a long time. The currently problematic virus belongs to this group.

The Corona Virus has been known since 1965. But it was uninteresting because it only happened in animals. Back then, nobody expected it to be transmitted to humans. That was the case with AIDS. It was already known in the 50s that monkeys had this virus. But it wasn't dangerous for the animals. No one could have known at the time that the virus could switch over to humans.

A coronavirus is a virus that originates from the Coronaviridae family.

In 2003, I think, there was already SARS-associated coronavirus 1 (ours is as far as I know 2), which was correspondingly more violent than the currently rampant one.
In itself, however, the Coronaviridae are a 'harmless' group.

Orthopox viruses are the ones to fear, Rhabdoviridae or Filoviridae.

Corona will not kill 90% of humanity.

Only half true.

Corona is just the overcategory of a relatively long line of different viruses. "THE CORONAVIRUS" does not actually exist in the name, since the exact name would be SARS-CoV-2. It is a subspecies.

Corona viruses (majority) have been known since '65, but it must also be said that the viruses discovered at the time are still the same. However, new strains were gradually discovered, some of which were only created by mutations. Like the SARS-CoV-2 virus, which is a new subspecies for medicine due to the mutations and thus causes so many problems.

What percentage cirga? What do you think?