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Koch-Weeks bacillus

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A pleomorphic form of the Hemophilus influenzae, the cause of acute conjunctival catarrh or prink-eye.

In 1883 Koch discovered the bacilli of two different forms of infectious conjunctivitis, or Egyptian ophthalmia. In 1886 Weeks discovered the same organism to be the cause of "pink-eye".


  • Robert Koch:
    Bericht üeber die Thätigkeit der deutschen Cholerakommission in Aegypten und Ostindien.
    Wiener medizinische Wochenschrift, 1883, 33: 1548-1551.
  • J. E. Weeks:
    The bacillus of acute cunjunctival catarrh or "pink eye".
    Archives of Ophthalmology, Chicago, 1886, 15: 441-451.

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