A Survey of Antibodies to the Porcine Reproductive and Respiratory Syndrome Virus in Japan

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  • 国内における豚繁殖・呼吸障害症候群ウイルスに対する抗体調査
  • コクナイ ニ オケル ブタ ハンショク コキュウ ショウガイ ショウコウグン ウイルス ニ タイスル コウタイ チョウサ

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Abstract

A serological survey of the porcine reproductive and respiratory syndrome virus (PRRSV) employing enzymelinked immunosorbent assay (ELISA) was conducted on 5, 535 samples collected at 207 pig farms in Japan from August 1998 to March 1999. Some of the pig farms from which samples were collected used a modified livevirus vaccine against PRRS. The pig farms demonstrated high prevalences (66.2%, 137/207) of the antibody. Pig-serum samples demonstrated a positive rate of 34.5%(1, 910/5, 535). These results indicate that the PRRSV is widely prevalent among farms and pigs in Japan.

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