頁籤選單縮合
題 名 | Decay of Maternally Derived Antibodies and Seroconversion to Respiratory Viral Infection in Pig Herds=豬群呼吸道病毒性疾病母體移行抗體衰退及血清抗體陽轉監測 |
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作 者 | 劉學陶; 莊秀琪; 張秀鑾; 蔡敬屏; 林恩仲; 楊平政; 鍾文彬; | 書刊名 | 臺灣獸醫學雜誌 |
卷 期 | 34:3 2008.09[民97.09] |
頁 次 | 頁127-141 |
分類號 | 437.657 |
關鍵詞 | 豬; 病毒感染; 母體移行抗體; 衰退; 陽轉; Pigs; Viral infection; Maternally derived antibodies; Decay; Seroconversion; |
語 文 | 英文(English) |
中文摘要 | 本試驗檢測台灣豬群豬假性狂犬病病毒(PRV)、豬生殖及呼吸綜合症病毒(PRRSV)、豬第二型環狀病毒(PCV2)及豬流行性感冒病毒(SIV)之母體移行抗體衰退情形。同時,將6家豬場逢機以橫斷面採取各週齡豬隻血清分析上述病原之血清學圖像。PRV及PRRSV之母體移行抗體半衰期分別為2.0及3.0週。豬隻PRV及PRRSV之預期陽轉週齡分別為12.2及10.4週。於1週齡時PCV2及SIV血球凝集素亞型1之抗體陽性率為80%,隨著週齡增加而逐漸下降,分別於11及5週齡時無法檢測出抗體。除了SIV可能呈現輕微至中等程度之散發,6家豬場最常見之呼吸道病毒性疾病抗體陽轉先後順序為PCV2,PRRSV及PRV。以上結果提供作為擬定豬隻呼吸道疾病疫苗免疫設計及控制策略之參考。 |
英文摘要 | This study investigated the decay of maternally derived antibodies to pseudorabies virus (PRV), porcine reproductive and respiratory syndrome virus (PRRSV), porcine circovirus type 2 (PCV2) and swine influenza virus (SIV) in the pig herds in Taiwan. Additionally, the serological profiles of these viral pathogens were examined in a cross-sectional study of six pig populations. The observed half lives of maternally derived serum neutralization antibodies against PRV and PRRSV were 2.0 and 3.0 weeks, respectively. The estimated times to seronegativity to PRV and PRRSV were 12.2 and 10.4 weeks, respectively. At one week of age, over 80% of pigs were positive for PCV2 and hemagglutinin 1 (H1) SIV antibodies, but antibody decreased to undetectable levels at 11 and 5 weeks of age, respectively. Except for SIV infection, which probably exhibited sporadic, mild to moderate outbreaks, the most common sequence of seroconversion to the viral respiratory infections in the six pig herds appear to be in an order of PCV2, followed by PRRSV and PRV. The results of this study provide basic data needed to design effective vaccination programs and intervention strategies for controlling swine respiratory diseases. |
本系統中英文摘要資訊取自各篇刊載內容。