- A dictionary of medical eponyms

Cowdria ruminantium

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The aetiological agent of heartwater of sheep, goats, and cattle; it is non-pathogenic for man. It is transmitted by the ticks Amblyomma hebraeum and A. variegata. Cowdry in 1925 successfully demonstrated the organism in tissue of infected animals and ticks and named the organism Rickettsia ruminantium. This was later changed to Cowdria ruminantium (Moshkovski, 1947).


  • S. D. Moshkovski:
    Comments by readers. Science, 1947, 106: 62.
  • R. E. Buchanan, N. E. Gibbons:
    Bergey's manual of determinative Bacteriology.
    8th edition, 1974. The Williams & Wilkins Co., Baltimore.

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