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Medical Definition of Avian diphtheria
1. An infection by the fowlpox virus in which tracheal involvement is especially severe. See: fowlpox. Synonym: fowl diphtheria. (05 Mar 2000)
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1. An infection by the fowlpox virus in which tracheal involvement is especially severe. See: fowlpox. Synonym: fowl diphtheria. (05 Mar 2000)