Antibody Survey of Domestic Animals for <I>Chlamydia psittaci</I> in Niigata Prefecture

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  • 新潟県内の家畜における<I>Chlamydia psittaci</I>の抗体調査
  • 新潟県内の家畜におけるChilamydia psittaciの抗体調査
  • ニイガタ ケンナイ ノ カチク ニ オケル Chilamydia psitta
  • Antibody Survey of Domestic Animals for Chlamydia psittaci in Niigata Prefecture

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Abstract

Bovine, equine, swine and chicken serum samples collected in the years of 1984, 1989 and 1994 in Niigata Prefecture were investigated for antibody to Chlamydia psittaci by indirect immunofluorescence. Of 260 bovine sera 87.2% were positive, showing a geometric mean (GM) titer of 1: 242.1. Positivity rates were significantly higher in older cattle than in youngers, and in Holstein breed than in Japanese Black. Of 90 equine, 100 swine and 100 chicken sera collected in 1994, positivity rates (GM titers) were 38.9%(1: 97.0), 78.0%(1: 266.9) and 4.0%(1: 65.8), respectively. These results suggested wide-spread Chlamydia infection among farm mammals in Niigata Prefecture.

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