流感嗜血桿菌
The "Haemophilus influenzae" type B vaccine, often called Hib vaccine, is a vaccine used to prevent "Haemophilus influenzae" type b (Hib) infection. In countries that include it as a routine vaccine, rates of severe Hib infections have decreased more than 90%. It has therefore resulted in a decrease in the rate of meningitis, pneumonia, and epiglottitis.