Is It Normal To Have Red Swelliing Bump Where The Flu Vaccine Was Administered?

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Haemophilus Influenzae Type B


Haemophilus influenzae (H. influenzae) type b is a bacterium, which, despite its name, is entirely different from the viruses that cause influenza (the flu). Before vaccination, H. influenzae type b (Hib) was the most common cause of childhood bacterial meningitis, killing 600 American children every year and leaving others deaf, mentally retarded, or epileptic. It is rarely troublesome for adults, although it can be dangerous for anyone with chronic lung disease...

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