The risk that this vulnerable population will fall out of the support network is simply too great.

What is the vulnerable population, and how do you tell them?

"We believe in cost containment, but this would hurt the most vulnerable population and the court agreed with us."

"They are one of the most vulnerable populations in Afghanistan."

The drug war, thus understood, is a crime against our most vulnerable population, those in serious, chronic pain.

But in a vulnerable population, the perceptions have a life of their own.

"We find that military intervention is likely to have an overwhelming impact on an already vulnerable population," it said.

Food poisoning is a serious risk only for vulnerable populations, like the very young.

A review board must protect the rights of vulnerable populations.

Children of low income families are a particularly vulnerable population in Peru.