Flu is considered as non-life threatening viral infection by the majority of the population, However, flu can be fatal and chronic in many cases.
https://gomedii.com/blogs/english/wp-login.php?action=logout&redirect_to=https%3A%2F%2Fgomedii.com%2Fblogs%2Fenglish%2F&_wpnonce=a9c27c906e
IImmunization