In fact, the problem is very serious. The thing is that the proven vaccine is still not found and people continue to die. Also, outbreaks are constantly recorded in other countries. Today, the virus is already on every continent.
In addition, there is a threat of virus mutation.
Technically flu virus keeps mutating all the time, and vaccines are available to the "past" variants of it, not "current" one. And its mortality is as well similar. The main difference is that coronavirus is a new type of virus.