Replenished supplies of a childhood meningitis vaccine prompted health officials Thursday to ease their recommendation that doctors postpone some shots.
Typically, four shots between the age of 2 months and 15 months are recommended for healthy children. But because of shortages of the vaccine Prevnar, the Centers for Disease Control and Prevention recommended in March that doctors give just two doses.
On Thursday, the CDC said doctors can now give children three doses.
The shortages were attributed to production problems at the manufacturer, Wyeth Pharmaceuticals.
Prevnar is used to protect children against invasive pneumococcal disease, which can lead to meningitis or bloodstream infections.