Generally most people who are on calorie restriction rarely get sick. I have only been doing CR just under a year myself and I usually do have more than 1 cold and the flu every year. So far I've managed to not catch a cold, regardless of my proximity to other people infected. Infact, nearly everyone I've been in contact with for the past 2 months have caught a cold. Thats all family members at home, most students in my class, teachers, friends etc...
I've always been the first person usually to catch a cold within my family or friends, not now... but I still have to get through the winter first
It's thought that people on CR may find it difficult to fight off viruses and have the symptoms linger around for quite a while but I don't think anyone on CR and had the flu died... right?
But I seriously don't like being super skinny... 112.6lb's