This is the same policy used for any sexual partner of someone in a high risk group.

If anything, they indicate that the risk groups will be much the same in five years as at present.

Of 81 cases where information was available, 63 were in risk groups for flu.

These are particularly effective for people in the highest risk groups, but they have serious flaws.

All of the seven fatalities were in high risk group.

Care for adults in risk groups or with chronic conditions.

Those outside the risk groups cannot in any way relax their guard.

They seemed to be a very high risk group of patients.

It is important to know the risk group in order to plan treatment.

But that history put them in the very highest risk group.