爲系統評估榆林市豬僞狂犬病（PR）防控成友近(chéng)效，2014—2015年采用問卷調查與采樣朋西(yàng)檢測相結合的方法，對(duì)榆林市豬僞狂犬病病毒（PRV）疫苗免都慢疫及感染情況進(jìn)行了調查。結果顯示：榆林市又金散養戶基本不進(jìn)行PRV間師疫苗免疫，PRV-gE抗體陽性率高達47.50%；規模豬場中免也錯疫場占比僅爲43.94%，PRV-gE抗體陽性率爲15.40%；用你爸PRV gE基因缺失疫苗免疫過(guò)的豬群中依然能(néng)檢測到PR可技V-gE抗體，gE抗體陽性率爲8.46%，且仔豬和育肥豬群中gE抗體陽性舞話率較高，分别爲34.36%和20.95%。結果表明，2014—2015年榆林市他國的PRV疫苗免疫效果較差，野毒感染較爲嚴重。爲探索科學(xué)的PR淨化方少知案，2016—2020年選取能(néng)真實舊書反映榆林市平均流行水平的某縣進(jìn)行PR淨化示範建設，上可通過(guò)臨床調查、實驗室檢測，在去劃分場群類型，分類實施不同淨化和免疫方案，取得了較好(高理hǎo)的淨化效果。至2020年，規模場PRV-gE機要抗體陽性全部降爲0，平均免疫抗體（gB抗體）陽性率達到90%；散養戶PRV科什-gE平均抗體陽性降爲3.20%，中線gB抗體陽性率達到75.00%；産死胎、木乃伊胎及弱仔數土那與淨化前相比下降90%以上。結果表明，該縣的PR淨化示範工作取得了成(chén間鄉g)功，淨化經(jīng)驗可向(xiàng)全市推廣，吧嗎以最終實現全市PR淨化目标。

Epidemiological Investigat花藍ion and Purification Demonstratio制子n of Porcine Pse還她udorabies in Yulin City，Shaan上理xi Province

In order to systematically evaluate用上 the effectiveness of preven林章tion and control of porcine pseu上房dorabies（PR）in Yulin Ci短高ty，from 2014 to 2015，th動靜e vaccination and infection of P如看R in the city wer的和e investigated by a qu動弟estionnaire in combination with sampli用道ng detection. The results sho科費wed that no vaccination ag房兵ainst porcine pseudorabies virus（PRV家都）was implemented by fr街筆ee-range households in general，and th都商e positive rate of PRV-gE antib師國ody was 47.50%；for intensive farms，tho技行se with vaccination accou志刀nted for 43.94%，and the positive rate 體火of PRV-gE antibody was 15.40%；PR木微V-gE antibody could still b空票e detected in pigs 議關vaccinated with道自 PRV gE gene deletion vaccines，with秒行 a positive rate of 8.46%，and the 錢喝positive rates of PRV-gE antibo信鐘dy were higher in pigle街腦ts and fattening 暗錢pigs，up to 34.36% and 20.95% res厭離pectively. In conclusion，the immuniza木美tion produced by PRV 厭信vaccine was poor in the perio關知d in the city，and infection 和湖with field viruses was serious金呢. In order to develop a scientifi影學c PR purificati看空on plan，from 2016 她影to 2020，a county where the aver書讀age prevalence level of the city c人可ould be truly r農報eflected was select雨上ed to study the constructio林時n of PR purification demonstration. The相件 farm tupes were classified thro銀頻ugh clinical investiga紅作tion and labora市的tory test，and differe花美nt purification and immunization progra國小ms were implemented，which科分 achieved good purifica風市tion effects. By 2020，the們通 positive rate of PRV-gE antibody頻林 was reduced to 0微亮 in all intensive farms where the a坐熱verage positive rate of immune antibod農新y（gB antibody）reached 90%；the av是科erage positive rate of PRV gE antib公知ody decreased to 3.20% in free-ra好喝nge households where the p下術ositive rate of gB 站城antibody was up to 75.00%；an件如d the number of stillb文快irths，mummified or理鐵 weak fetuses decreased by錯雨 above 90% compared to農畫 that prior to pu子討rification. It 黑玩was concluded that 拿鐘the demonstration of P話關R purification was successfu體下l in the county，from但笑 which its experience might be我書 popularized to靜相 other regions to reach the f門工inal goal of PR purific什東ation across the city.

信息來源：https://kns.cnki.net鐵中/kcms/detail/detail.asp校制x?dbcode=CJFD&dbnam書間e=CJFDAUTODAY&filename=Z雪生GDW202208005&uniplatform=NZKPT&v=vPzqR5路對W2eDA0GZm-qK1jv0J9ykMFCRjz__ul土章S66gc19y60HHsjuPyYH-Q作但TBZD81c