Adolescent Age Up?

Could a 5 1/2 month old pup with less then 100% Survival rate and no pupsitter still die at their next RO or will they age up safely? 

Any pup with less than 100% do have a chance of dying, but the higher the survival rate is - the less likely it is to happen. Of course, it still can if you are very unlucky, but it's not likely.

If it makes you feel any better, I've had pups with about 50% and no sitter somehow survive :''DDD