Do family member's escape the Calamity if the student dies? When the Calamity begin, relatives to a student in class 3-3 are also at risk of dying due to the Calamity.

I am wondering, if a student died as a result of the Calamity would their relatives be spared?
It's not sure but, by logic, when a student dies, he is no more a student in class 3-3, so their relatives are safe.

In fact, in the anime, nothing happens to any relative of a dead student.