Changing epidemiology of childhood meningitis.

The changing epidemiology of meningitis at Wolfson Children's Hospital in Jacksonville between 1985 and 1994 was reviewed to determine the impact of Haemophilus influenzae type b vaccination. The cases were also straified by age. A significant decrease in the cases of Haemophilus influenzae type b meningitis was found between 1991 and 1994. This was most likely due to the introduction of conjugate Haemophilus influenzae type b vaccine for young infants.