Haemophilus influenzae is a type of bacteria that can cause various infections, particularly in young children and individuals with weakened immune systems. It is known for causing respiratory infections, such as bronchitis and pneumonia, as well as more severe diseases like meningitis and epiglottitis. While many strains are harmless, the type b strain (Hib) can lead to serious health complications. Vaccination has significantly reduced the incidence of Hib infections, making it less common in vaccinated populations.
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