Haemophilus influenzae
Quick Summary
Haemophilus influenzae is a genus of bacteria that are gram-negative and typically coccobacillus in shape. These bacteria are strict parasites found in the mouth, upper respiratory tract, and intestinal tract of warm-blooded animals, including humans. While some species cause disease in animals, H. influenzae is a significant cause of various infections in humans, such as ear, skin, and blood infections.1
A particularly problematic strain is H. influenzae type b (Hib), which can lead to serious conditions like pneumonia and meningitis, especially in young children and individuals with weakened immune systems. Fortunately, effective Hib conjugate vaccines are available to prevent these infections.1
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conjunctivitis>Haemophilus influenzae (which may invade the respiratory tract or the brain coverings). Gonococcal conjunctivitis, invasion of the conjunctiva by gonorrhea organisms, was once common among newborn infants, who became infected during delivery. This infection can cause blindness if not treated promptly. It is prevented by…
Read More>Haemophilus influenzae (which may invade the respiratory tract or the brain coverings). Gonococcal conjunctivitis, invasion of the conjunctiva by gonorrhea organisms, was once common among newborn infants, who became infected during delivery. This infection can cause blindness if not treated promptly. It is prevented by…
Read More- croupBacterial croup
…historically was caused primarily by Haemophilus influenzae type B. However, a vaccine effective against H. influenzae—known as the Hib vaccine—has significantly reduced the occurrence of epiglottitis caused by this organism. Today epiglottitis is more often caused by Staphylococcus aureus or by Streptococcus pneumoniae or Streptococcus pyogenes.
Read More…historically was caused primarily by Haemophilus influenzae type B. However, a vaccine effective against H. influenzae—known as the Hib vaccine—has significantly reduced the occurrence of epiglottitis caused by this organism. Today epiglottitis is more often caused by Staphylococcus aureus or by Streptococcus pneumoniae or Streptococcus pyogenes.
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meningitisOther bacterial causes of meningitisMeningitis caused by H. influenzae occurs most often in infants and young children and only rarely in older persons. Its course and symptoms resemble those of N. meningitidis. The bacterium Streptococcus pneumoniae is a common cause of meningitis in adults. In many less-developed countries, tuberculous meningitis is common.
Read MoreMeningitis caused by H. influenzae occurs most often in infants and young children and only rarely in older persons. Its course and symptoms resemble those of N. meningitidis. The bacterium Streptococcus pneumoniae is a common cause of meningitis in adults. In many less-developed countries, tuberculous meningitis is common.
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otitis mediaStreptococcus pneumoniae or Haemophilus influenzae. Symptoms of infection include fever, earache, and sometimes suppuration (discharge of pus). Diagnosis is established by careful visual examination of the tympanic membrane (eardrum) and by techniques (tympanometry) that can provide evidence of fluid behind the eardrum.
Read MoreStreptococcus pneumoniae or Haemophilus influenzae. Symptoms of infection include fever, earache, and sometimes suppuration (discharge of pus). Diagnosis is established by careful visual examination of the tympanic membrane (eardrum) and by techniques (tympanometry) that can provide evidence of fluid behind the eardrum.
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respiratory diseasePneumoniaThe organism Hemophilus influenzae is commonly isolated from the sputum of patients with chronic bronchitis during acute exacerbations of infection and is an important cause of pneumonia in adults.
Read MoreThe organism Hemophilus influenzae is commonly isolated from the sputum of patients with chronic bronchitis during acute exacerbations of infection and is an important cause of pneumonia in adults.
Read More- sinusitis
The organisms usually involved are Haemophilus influenzae, Streptococcus pneumoniae, Staphylococcus aureus, Streptococcus pyogenes, and many other penicillin-sensitive anaerobes.
Read MoreThe organisms usually involved are Haemophilus influenzae, Streptococcus pneumoniae, Staphylococcus aureus, Streptococcus pyogenes, and many other penicillin-sensitive anaerobes.
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