Controlling spread of Hib

Spread of haemophilus influenzae type b (Hib) can be checked in day-care centers by administration of rifampin to classroom contacts, notes a multiclinic study of children in Seattle, Atlanta and Oklahoma.

The study suggests that a child's chance of contracting Hib from other children in the classroom is strongly age related. Virtually all the secondary cases in the study occurred in children younger than 23 months, those children for which the Hib vaccine is not effective. The children are at an even greater risk if they attend day-care more than 25 hours per week.

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