A shortage of an important childhood vaccine is expected to last until the middle of next year, the Centers for Disease Control (CDC) reports. The Hib vaccine shortage began last year, after a Merck & Co. facility where it was made was closed due to bacterial contamination.
Hib, or haemophilus influenzae type b, is a bacteria that can cause a serious form of pneumonia and a condition called bacterial meningitis. According to the CDC, Hib is the leading cause of bacterial meningitis in children under five years of age. More A Year After Recall, Hib Vaccine Shortage Continues


