Watch your logic, fren. I know the school system is a failure by design, but let's think this through.
It says at the top, "Family" and "Examples." So if you take a more common example: consider the dog family, an example of dogs is poodle. You can't logically say from that that all dogs are poodles. Poodles are just one member of the dog family.
Or... Melania Trump is an example of a human, but not all humans are Melania Trump.
Likewise, you can't say that all coronaviruses are colds. Colds are just an example from the coronavirus family.