四川部分种猪场乙型脑炎血清抗体调查

2001年我室从省内已免疫乙脑的8个种猪场采集了597份猪血清进行了乙型脑炎血清抗体检测，结果抗体阳性率仅达32．83％，37．50％的种猪场血清抗体阳性率低于10％，免疫水平低下，不能有效保护种猪免受乙型脑炎感染。应采取积极的预防措施，采用有效的疫苗进行免疫，有效的防止种猪场流行性乙型脑炎的发生。     

Comparative evaluation of kinetic nephelometry for antibody detection

The sensitivity of the nephelometry performed as kinetic and end-point measurement for the detection of serum antibodies was evaluated in an experimental system and compared with that of the complement fixation and single radial immunodiffusion tests. The corresponding antibody titres of the used anti-FCS antiserum with BSA antigen were estimated to be 2⁻⁷ in complement fixation, 2⁻⁶ in single radial immunodiffusion and 2⁻⁴ in kinetic (rate) nephelometry tests. From the described findings it was concluded that the kinetic nephelometry with its present technical instrumentation provided a rapid serological technique to establish quantitative Heidelberger curves under experimental conditions but did not meet the required sensitivity for the detection of naturally occurring antibodies in infected donors.     

Toxoplasmosis Prevention and Testing in Pregnancy,Survey of Obstetrician–Gynaecologists

Toxoplasmosis in pregnant women can lead to congenital disease with severe neurological and ocular complications in the foetus. In 2006, we surveyed US obstetrician–gynaecologists to determine their knowledge and practices about toxoplasmosis prevention and testing. Questionnaires were mailed (four mailings) to a random sample of 1200 of the 33 354 members of the American College of Obstetricians and Gynecologists (ACOG). Of the 1200 surveyed, 502 (42%) responded. The respondents were similar to all ACOG members by gender, region of the country and practice type (P > 0.5), and age (respondents were slightly younger, mean 46 years versus 47 years). To prevent toxoplasmosis, most respondents indicated that they counsel pregnant women about cat litter (99.6%), but fewer counselled about eating undercooked meat (77.6%), handling raw meat (67.4%), gardening (65.4%) or washing fruits and vegetables (34.2%). Many (73.2%) respondents were not aware that some Toxoplasma IgM tests have had a high false positive rate, and most (91.2%) had not heard of the avidity test, which can help determine the timing of Toxoplasma gondii infection in relation to pregnancy. There is a need for more education about T. gondii serological testing, particularly the Toxoplasma avidity test. US obstetrician–gynaecologists are providing beneficial counselling to their patients, but could provide more information about undercooked meat and soil risks.     

Davana： A New Host Plant for Ralstonia solanacearum from India

Ralstonia solanacearum infecting Davana （Artemisia pallens Wall.） from commercial nurseries in India was isolated on modified semi selective media （SMSA）. Here, we report a new host for Ralstonia solanacearum i.e. davana. It has huge demand in medicinal and aromatic industries. Isolate was confirmed as race-l, biovar-3 by morphological, physiological, biochemical and pathogenicity studies. Two sets of primers （OLI 1 ＆ Y2 and Y 1 ＆ Y2） were used in this study. Further, the identity of the isolate was confirmed by serological diagnostic kit obtained from International Potato Research Center, Lima, Peru and single chain variable fragment antibody specific to Ralstonia solanacearum used to confirm the casual organism.     

复方麝香注射液联合尼莫地平治疗高血压性脑出血微创清除术后患者的疗效观察

目的 观察复方麝香注射液联合尼莫地平治疗微创清除术后高血压性脑出血患者的临床疗效,探讨其临床应用价值。方法 选取2018年5月至2019年5月本院收治的96例高血压脑出血患者,随机分为观察组和对照组,每组48例。对照组在基础治疗及护理的基础上给予尼莫地平注射液14 d,后改用尼莫地平片继续服用14 d;观察组在对照组的基础上加用复方麝香注射液静脉滴注28 d。观察两组患者治疗前后的血肿量、水肿量、神经功能缺损程度[美国国立卫生研究院卒中量表（national institute of health stroke scale,NIHSS）评定]、血清学相关指标[白细胞介素-6（interleukin-6,IL-6）、肿瘤坏死因子-a（tumor necrosis factor-a,TNF-a）、基质金属蛋白酶-9（matrix metalloprotein-9, MMP-9）],以及治疗后临床疗效。结果 （1）治疗后,两组患者的血肿量、水肿量均较本组治疗前减少,NIHSS评分均较本组治疗前降低,差异均有统计学意义（P<0.05）,且观察组低于对照组（P<0.05）;（2）治疗后,两组患者的血清IL-6、TNF-a、MMP-9均较本组治疗前下降（P<0.05）,且观察组低于对照组（P<0.05）;（3）治疗后观察组患者的总有效率为95.83%,高于对照组的81.25%（P<0.05）。结论 采用复方麝香注射液联合尼莫地平治疗微创清除术后高血压性脑出血患者,可促进患者颅内血肿吸收,改善神经功能缺损,疗效显著,值得临床推广。     

2016—2019年云南省昆明市小反刍兽疫集中监测

为切实做好云南省小反刍兽疫消灭工作,保障羊产业稳定健康发展,依据《国家中长期动物疫病防治规划(2012—2020年)》和《全国小反刍兽疫消灭计划(2016—2020年)》要求,2016—2019年分别采用ELISA、RT-PCR方法,在昆明市开展了小反刍兽疫免疫抗体和病毒核酸检测.结果显示:909个集中监测养殖场点的8...     

仔猪水肿病病原菌的分离鉴定

从江苏淮安某猪场具有典型水肿病临床症状和剖检变化的发病猪组织分离的菌株中挑选5株大肠杆菌,分别命名为JS0001、JS0002、JS0003、JS0004和JS0005。通过培养特性、菌体形态、染色特性、生化鉴定及血清学试验等一系列方法对其进行系统鉴定,并对这5株细菌进行抗药性、溶血性、Vero细胞毒性和小白鼠致病性等试验。试验结果表明,JS0001、JS0002、JS0004和JS0005表现β型溶血,腹腔接种小白鼠,JS0001、JS0002、JS0003、JS0004对其具有较高致病性;5株细菌药敏特性基本一致：对痢特灵（FR）、头孢噻肟（CTX）、阿米卡星（AN）敏感,对头孢曲松（CRO）敏感性最高,而对阿莫西林(AMX)、多西环素(DO)等药物具有耐药性。JS0002、JS0004能够分泌Vero细胞毒素,确定为产类志贺毒素大肠杆菌（SLTEC）。血清学试验结果表明,JS0002、JS0004的血清型为O₁₃₉,JS0001、JS0003为O₁₄₁。     

山西省阳高县猪瘟血清学调查研究

采用正向间接血凝试验(IHA),对山西省阳高县12个乡镇65个养猪场和散养户饲养猪的1 269份血清进行猪瘟抗体检测,并对近年来调查数据加以比较,以了解猪瘟病毒(CFSV)在阳高县区的感染情况.结果表明,阳高县各地均有猪瘟抗体阳性检出,猪场抗体阳性检出率达100%,其中母猪的抗体阳性率为12.65%,仔猪的抗体阳性率为12.76%.说明阳高县CSFV感染比较严重,应采取有效防疫措施进行防控.     

甘肃省猪流感H5和H9抗体的血清学调查

用血凝（HA）和血凝抑制试验（HI）对甘肃省742份猪血清进行了猪流感H5和H9亚型抗体检测。在12个市州的猪群中检出SIH9亚型抗体,检出阳性34份,平均阳性率为4．58％。阳性率最高为9．09％,最低为0．91％。在2个市州的猪群中检出SIH5亚型抗体,检出阳性3份,平均阳性率为0．40％。阳性率最高为4．76％,最低为2．98％。检测患病猪（非流感病）血清66份,其中8份检测出SIH9抗体．抗体阳性率为12．12％。     

内蒙古地区牛传染性鼻气管炎血清学调查

本文应用ELISA方法对内蒙古自治区13个盟市457头牛进行了牛传染性鼻气管炎血清流行病学调查.结果显示,除兴安盟、巴彦诺尔市、乌海市和阿拉善盟以外,其他盟市均查出牛传染性鼻气管炎感染阳性牛,最低感染率仅为5％,最高感染率达100％,中东部地区疫情较严重.本研究结果,为内蒙古地区牛传染性鼻气管炎的防制提供可参考数据.