Haemophilus influenzae infection

Haemophilus influenzae, abbreviated as Haemophilus, is normal flora of the human upper respiratory tract. It was previously mistakenly considered the pathogen of influenza, but its actual pathogenic range is extremely broad. In addition to causing respiratory tract lesions, it can also cause meningitis, septicemia, conjunctivitis, female genital tract infections, cellulitis, etc. It is not only a common pathogen of infections in infants and young children, but also one of the pathogens of adult infections.