共查询到19条相似文献,搜索用时 171 毫秒
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目的 描述北京市门头沟区发热伴血小板减少综合征(SFTS)患者感染来源、临床特征和流行病学特征,为制定SFTS防控措施提供科学依据。方法 采用现场流调、查阅病历等方式获取患者临床、流行病学信息,采集血液标本进行核酸和抗体检测,进行媒介蜱和动物宿主调查。结果 患者多年未出京,发病前活动范围为居住地周边。实时荧光定量聚合酶链式反应检测方法显示,患者血清SFTS病毒核酸阳性;血清抗体检测显示,IgM抗体阳性,病毒含量为1.9×104半数组织培养感染剂量(TCID50)/mL,临床症状以持续发热、进行性血小板减少、白细胞减少为主,服用抗病毒药利巴韦林后好转并逐渐痊愈,整个病程为20 d。媒介生物调查显示:在患者村落周围环境捕获到的媒介长角血蜱5只,SFTS病毒核酸阴性。病例家犬血液经检测显示SFTS病毒核酸和抗体均为阴性。结论 该SFTS病例为北京市门头沟区首次报告,今后应加强病例监测,做好媒介生物监测和健康宣教。 相似文献
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目的对2014年湖北省咸宁市嘉鱼县一起流行性出血热(EHF)疫情的病例血清标本及患者居住地周围捕获的动物鼠的鼠血、鼠肺组织开展汉坦病毒病原学检测及病毒的分子进化研究。方法采用汉坦病毒IgG和IgM抗体检测试剂对2例患者及56例密切接触者开展血清学和核酸检测。对于核酸阳性的标本进一步分型确定其基因型别。在此基础上,对M片段基因序列进行测序并构建进化树。结果 2份送检的患者血清IgM抗体均为阳性,所有密切接触者血清IgM和IgG均为阴性,汉坦病毒核酸全部为阴性;在捕获的8只鼠标本中,3只鼠检出汉坦病毒核酸,阳性率为37.5%,基因分型结果为汉城型(SEO)型。M片段测序及系统发生情况表明该地鼠携带的汉坦病毒位于汉城病毒(SEOV)所在的支系,进化上同武汉分离株WuhanRf02、江西分离株JiangxiXinjianRn-07-2011D亲缘关系最近。结论通过对病例标本及居住地动物鼠进行病原学检测与分析,发现该次出血热疫情很有可能是由SEO型汉坦病毒经鼠造成向人传播。因此,通过加强对该地区汉坦病毒宿主动物的监测对于EHF的防控十分重要。 相似文献
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《疾病监测》2014,29(10):806-809
目的分析湖北省随州市发热伴血小板减少综合征(SFTS)的监测结果,为SFTS的诊断和防控提供科学依据。方法采用描述流行病学对2010-2013年监测数据进行临床和流行病学特征分析。结果病例以发热伴恶心或乏力为首发症状,血细胞检测结果为血小板和白细胞计数明显减少。2010-2013年共有发热伴血小板减少综合征布尼亚病毒(SFTSV)阳性病例101例,死亡16例;发病高峰主要集中在5-7月,呈散发状态;人群年龄分布在29~86岁之间,50岁以上发病的占83.17%;职业以农民为主,占96.03%。结论 SFTS临床表现复杂,伴有多器官损害,其死因可能与休克、病毒心肌炎、呼吸衰竭等多脏器功能衰竭有关;患者均居住在丘陵地区,有田间或草丛活动史及蜱叮咬史。需加强SFTS的预防意识及诊断能力。 相似文献
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目的 对2012年辽宁省发热伴血小板减少综合征(SFTS)流行病学特征和病原学检测结果进行分析,为临床诊断和预防控制提供依据。方法 以实验室确诊SFTS患者为研究对象,描述三间分布、临床症状体征,并对分离到的病原进行核苷酸序列分析。结果 2012年辽宁省报告的185例疑似病例中,38例实验室确诊感染SFTSV,病死率为5.26%。病例多来自丘陵地区,以中老年、农民为主,无明显性别差异;发病时间为6-10月,部分病例发病前有明确的蜱叮咬史;临床表现主要为发热(100%)、头痛(73.68%)、恶心(65.76%);血常规检查有血小板计数减少(97.37%)和白细胞计数减少(78.95%)。分离到的9株SFTSV的S、M片段核苷酸序列同源性达95%以上。结论 辽宁省是SFTS的流行地区,需提高SFTS的诊疗能力及加强对SFTS的预防控制。 相似文献
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《Journal of infection and chemotherapy》2022,28(6):753-756
IntroductionSevere fever with thrombocytopenia syndrome (SFTS) is an emerging tick-born disease and its animal-to-human transmission has come to attention recently. During our sero-survey of SFTS virus (SFTSV) among veterinary professionals in 2018, a veterinarian and his assistant working in an animal hospital were tested positive by enzyme-linked immunosorbent assay (ELISA). An additional survey implied a cluster of SFTS cases in which four more people, a family who brought two sick dogs to the animal hospital in 2003, were involved. This study aimed at assessing the possibility of animal-to-human transmission of SFTSV in this cluster.MethodsRetrospective interviews were performed with the owner family of the dogs and their clinical records were obtained from each hospital. SFTSV-IgG were tested by ELISA and virus neutralization test using the sera collected from them in 2018.ResultsThe interviews revealed that a total of six people, the two veterinary professionals and the owner family who took care of the sick dogs, suffered from SFTS-like symptoms in the same period of time in 2003. All patients did not have tick bite before the onset and all suspected causative agents were excluded by laboratory tests. The serological tests in this study revealed the four owner family members were all positive for SFTSV antibodies.ConclusionsConsidering the extremely low seroprevalence of SFTSV antibodies among inhabitants of the region, the existence of SFTSV antibodies in all these six people presents a possibility that they were involved in an SFTS outbreak originated in the sick dogs in 2003. 相似文献
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Toshiya Kimura Aiko Fukuma Masayuki Shimojima Yasutaka Yamashita Fumi Mizota Mayumi Yamashita Yuka Otsuka Miki Kan Shuetsu Fukushi Hideki Tani Satoshi Taniguchi Momoko Ogata Takeshi Kurosu Shigeru Morikawa Masayuki Saijo Hiroto Shinomiya 《Journal of infection and chemotherapy》2018,24(10):802-806
Severe fever with thrombocytopenia syndrome (SFTS) was first identified as an emerging tick-borne infectious disease caused by the SFTS virus (SFTSV) in China and has also been found to be endemic to Japan and South Korea, indicating that SFTS is of great concern in East Asia. The aim of the present study was to determine the seroprevalence of SFTSV antibodies in humans and animals in SFTS-endemic regions of Japan. One of 694 (0.14%) healthy persons over 50 years of age and 20 of 107 (18.7%) wild and domestic animals in Ehime prefecture of western Japan were determined to be seropositive for SFTSV antibodies by virus neutralization test and ELISA, respectively. The seropositive person, a healthy 74-year-old woman, was a resident of the southwest part of Ehime prefecture engaged in citriculture and field work. This woman's sample exhibited neutralizing activity against SFTSV although she had neither a clear experience with tick bites nor SFTS-like clinical illness. These findings indicate that most people living in the endemic regions are not infected with SFTSV and suggest that most of the SFTS patients reported so far do not reflect the tip of an iceberg of people infected with SFTSV, but at the same time, that SFTSV infection does not always induce severe SFTS-associated symptoms. These findings also suggested that SFTSV has been maintained in nature within animal species and ticks. 相似文献
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目的了解浙江省天台县山区蜱与蜱媒传染病的种类、分布以及危害状况,为建立蜱媒传染病预防控制技术体系提供参考。方法采用PCR等技术对该地区的蜱媒病原的感染情况进行流行病学调查研究。结果对141只啮齿动物进行检测,染蜱率为17.02%,带蜱指数为0.4823;采集家畜和野生动物体表寄生蜱705只,在鼠脏器标本中检测到莱姆病螺旋体核酸片段、埃立克体核酸片段、斑点热核酸片段;在长角血蜱中检测到斑点热核酸片段;在人血清检测到莱姆病IgG抗体及斑疹伤寒抗体。结论天台山区有莱姆病、埃立克体和斑点热存在,可能引起一些蜱媒传染病的发生。 相似文献