目的 分析2024年2月至2026年2月郑州人民医院收治的急性下呼吸道感染（ALRTI）患儿的病原体分布情况及其流行病学特征。方法 选取2024年2月—2026年2月于郑州人民医院就诊的193例ALRTI患儿为研究对象，采集患儿咽拭子样本，统计患儿病原体检测结果，比较不同性别、不同年龄段、不同发病季节患儿病原体分布情况。结果 193例患儿中，经病原体检测出阳性患儿165例，总阳性检出率85.49%，检出率最高的前三位为RSV（20.73%）、MP（19.69%）、HRV（15.54%）；婴儿期患儿RSV感染占比（44.83%）最高，其次为HRV感染（20.69%），幼儿期患儿RSV、HRV、MP感染占比（17.31%、17.31%、19.23%）均较高，学龄前、学龄期患儿MP感染占比（33.33%、26.32%）最高，婴儿期患儿混合感染占比（6.90%）较低，学龄前患儿混合感染占比（20.00%）较高；春季时，各病原体分布较均衡，HRV、MP、SP感染占比（14.58%、12.50%、14.58%）均较高，夏季、秋季时，MP感染率（31.82%、28.85%）较高，冬季时，RSV感染率（55.10%）较高，四个季节中混合感染患儿占比较接近，其中秋季感染率（17.31%）相对较高。结论 2024年至2026年郑州人民医院收治的急性下呼吸道感染患儿病原体中，RSV、MP为主要病原体，各呼吸道病原体随患儿年龄段、季节变化存在不同发病高峰，临床应结合实际情况早期鉴别病原体，以指导临床制定针对性治疗方案，改善患儿预后。
Objective To analyze the distribution of pathogens and the epidemiological characteristics of children with acute lower respiratory tract infections (ALRTI) admitted to Zhengzhou People’s Hospital from February 2024 to February 2026. Methods: A total of 193 pediatric patients with ALRTI who visited Zhengzhou People’s Hospital between February 2024 and February 2026 were selected as study subjects. Throat swab samples were collected from the patients, and pathogen testing results were compiled to compare the distribution of pathogens across different genders, age groups, and seasons of onset. Results: Among the 193 children, 165 tested positive for pathogens, resulting in an overall positive detection rate of 85.49%. The top three most frequently detected pathogens were RSV (20.73%), MP (19.69%), and HRV (15.54%); RSV infection had the highest prevalence (44.83%) among infants, followed by HRV infection (20.69%). Among preschoolers, the prevalence of RSV, HRV, and MP infections (17.31%, 17.31%, and 19.23%, respectively) was relatively high. MP infections were most common among preschool and school-age children (33.33% and 26.32%, respectively); the proportion of mixed infections was lower among infants (6.90%) but higher among preschoolers (20.00%); In spring, the distribution of pathogens was relatively balanced, with high proportions of HRV, MP, and SP infections (14.58%, 12.50%, and 14.58%, respectively). In summer and fall, the MP infection rate was high (31.82% and 28.85%, respectively). In winter, the RSV infection rate (55.10%) was high. The proportion of children with mixed infections was relatively similar across the four seasons, with a relatively higher infection rate (17.31%) in autumn. Conclusion: Among the pathogens identified in children with acute lower respiratory tract infections admitted to Zhengzhou People’s Hospital from 2024 to 2026, RSV and MP were the primary pathogens. The incidence peaks of various respiratory pathogens varied according to the children’s age groups and seasons. Clinicians should conduct early pathogen identification based on actual conditions to guide the development of targeted treatment plans and improve patient outcomes.
摘要：目的 分析2022—2024年深圳市福田区危重症孕产妇不同亚组（不同并发症/合并症）的流行病学特征、病因构成及相关因素，为优化区域孕产妇健康管理提供依据。方法 基于福田区危重症孕产妇监测网络，对2022年1月1日至2024年12月31日期间107921例孕产妇个案资料进行回顾性描述性分析，采用描述性流行病学方法及卡方检验分析不同因素与危重症主要并发症的关联。结果 深圳市福田区3年间危重症孕产妇共729例，总体发生率为6.75‰。各年度发生率分别为2022年6.67‰、2023年7.38‰和2024年6.33‰。危重症孕产妇中，≥35岁者占33.7%，本科及以上学历者占53.8%。初检妊娠风险评级为黄色者占比最高（41.98%），高危者占21.9%。最常见并发症为产后出血（43.89%），其次为宫缩乏力（17.28%）、前置胎盘（16.59%）、子痫/子痫前期（14.67%）和胎盘植入（13.99%）。血液系统疾病为最常见合并症（57.75%），内分泌系统疾病次之（24.42%）。单因素分析显示，产后出血的发生与高龄、产检次数不足5次、经产妇身份存在统计学关联（均P<0.05）；前置胎盘的发生与高龄、低学历、非汉族、初检高危评级、产检不足5次、经产存在统计学关联（均P<0.05）。结论 深圳市福田区危重症孕产妇发生率约为6.75‰，产后出血和前置胎盘为主要并发症。单因素分析显示，高龄、产检不足、初检高危分级及经产与上述主要并发症的发生相关。应加强动态妊娠风险管理和多学科协作，完善产科早期预警体系，以降低危重症孕产妇发生率，提高母婴安全水平。
Abstract: Objective To analyze the epidemiological characteristics, etiology composition, and related factors of critically ill pregnant women in Futian District, Shenzhen, from 2022 to 2024. Methods Based on the surveillance network, a retrospective descriptive analysis was conducted on 107,921 pregnant women. Chi-square tests were used to analyze the association between different factors and major complications. Results A total of 729 critically ill pregnant women were identified (overall incidence 6.75‰).??The most common complication was postpartum hemorrhage (43.89%), followed by uterine atony (17.28%), placenta previa (16.59%), eclampsia/preeclampsia (14.67%), and placenta accreta (13.99%). Univariate analysis showed that postpartum hemorrhage was statistically associated with advanced age, <5 antenatal visits, and multiparity (all P<0.05). Placenta previa was statistically associated with advanced age, low education level, non-Han ethnicity, high-risk initial assessment, <5 antenatal visits, and multiparity (all P<0.05). Conclusion The incidence of critically ill pregnant women in Futian District is approximately 6.75‰. Univariate analysis suggested that advanced age, insufficient antenatal visits, high-risk classification, and multiparity were associated with the main complications. Dynamic risk management and multidisciplinary collaboration should be strengthened.
目的 调查南宁市2022—2024年食源性疾病的发生情况,并分析该地食源性疾病的流行病学特征,为防控食源性疾病提供依据。方法 在2022年1月—2024年12月统计南宁市多中心上报的食源性疾病发生情况,并分析食源性疾病的分布特征。结果 2022年1月—2024年12月在南宁市共计调查21 712例食源性疾病患者,其中男性占49.25%,女性占50.75%;食源性疾病以18~59岁、4~17岁年龄段占比相对较高,在季节方面2022年以秋季占比较高,2023—2024年以夏季占比较高;散居儿童、学生和农民是食源性疾病的主要人群,混合食品、水果及其制品、粮食类及其制品、肉类及其制品为前四位暴露食品;包装方面以散装占比最高、进食场所则以家庭占比最高;食源性疾病患者3年间不同性别、年龄段、发病季节、人群类型、暴露食品、包装形式及进食场所比较差异均有统计学意义（P<0.05）。症状主要以消化道症状、其他/全身症状为主。结论 南宁市2022—2024年食源性疾病发生例数有所增长,多发于夏秋季节,散居儿童、学生、农民是食源性疾病的高风险群体,同时针对散装食品,尤其混合食品、水果及其制品、粮食类及其制品、肉类及其制品等主要暴露食品应做好重点防控监测,可根据本地食源性疾病发生的流行病学特征进行对应的宣传教育,以确保食品安全。
Objective To explore the occurrence of foodborne diseases in Nanning City from 2022 to 2024,and analyze the epidemiological characteristics of foodborne diseases in the area,providing a basis for the prevention and control of foodborne diseases．Methods From January 2022 to December 2024,the incidence of foodborne diseases reported by multiple centers in Nanning City was statistically analyzed,and the distribution characteristics of foodborne diseases were analyzed．Results From January 2022 to December 2024,a total of 21 712 foodborne disease patients were analyzed in Nanning City,among them,males account for 49.25% and females account for 50.75%．Foodborne diseases had a relatively high proportion in the age groups of 18-59 and 4-17 years old．In terms of seasons,the proportion was higher in autumn 2022 and in summer 2023-2024．Scattered children,students,and farmers were the main populations of foodborne diseases,with mixed foods,fruits and their products,grains and their products,and meat and its products being the top four exposed foods．In terms of packaging,bulk packaging had the highest proportion,while in terms of eating places,household packaging has the highest proportion．There were statistically significant differences in the gender,age group,onset season,population type,exposed food,packaging form,and eating location of foodborne disease patients over a three-year period．Conclusions The number of foodborne diseases in Nanning City has increased from 2022 to 2024,mostly occurring in summer and autumn seasons．Scattered children,students,and farmers are high-risk groups for foodborne diseases．At the same time,key prevention and control monitoring should be carried out for bulk foods,especially mixed foods,fruits and their products,grains and their products,meat and their products,and corresponding publicity and education can be carried out according to the epidemiological characteristics of local foodborne diseases to ensure food safety．
目的 分析流行性感冒（流感）患儿的流行病学特征及病原学分布。方法 纳入2020年3月—2023年2月在开封市祥符区第一人民医院确诊为流感的394例1~10岁患儿的咽拭子标本,通过实时荧光定量聚合酶链式反应完成流感病毒检测,分析此394例流感患儿感染的病毒类型及年龄、季节、性别、年份等分布情况。结果 甲型H1N1流感病毒为本次研究检出占比最高的流感病毒,占36.04%;男女患儿之间的甲型H3、甲型H1N1、乙型BV、乙型BY流感病毒占比比较差异无统计学意义（P>0.05）;春季及冬季流感患儿占比最多,分别为41.12%、35.53%,且不同季节之间的甲型H3、甲型H1N1、乙型BV、乙型BY流感病毒占比比较差异有统计学意义（P<0.05）;7~10岁流感患儿占比最高,为42.13%,不同年龄段患儿之间的甲型H3、甲型H1N1、乙型BV、乙型BY流感病毒占比比较差异无统计学意义（P>0.05）;2020年流感患儿占比最高,为43.40%,后续依次为2022年的29.70%,2021年的26.90%;不同年份的冬季流感患儿占比比较差异有统计学意义（P<0.05）;不同年份的各年龄段流感患儿占比比较差异无统计学意义（P>0.05）;各年甲型H3、甲型H1N1、乙型BV、乙型BY流感病毒占比比较差异无统计学意义（P>0.05）。结论 年龄7~10岁的患儿为流感高危群体,且甲型流感为患儿主要感染类型,而甲型流感病毒多见于春、冬季,新型冠状病毒肺炎疫情期间防控政策变化对流感流行有影响,应加强春、冬季7~10岁年龄段患儿的甲流预防工作。
Objective To analyze the epidemiological characteristics and etiological distribution of children with influenza（flu）．Methods The throat swab specimens of 394 children aged 1 to 10 years old who were diagnosed with influenza at the First People's Hospital of Xiangfu District,Kaifeng City from March 2020 to February 2023 were included．The samples were analyzed by real-time fluorescence quantitative polymerase chain reaction to complete influenza virus detection and analyze the virus types and distribution of age,season,gender,year,etc．among these 394 children with influenza were analyzed．Results Influenza A H1N1 virus was the influenza virus with the highest proportion detected in this study,accounting for 36.04%;there were differences in the proportions of influenza A H3,A H1N1,BV,and B BY influenza viruses between male and female children,with no statistical significance（P>0.05）;the proportion of children with influenza is the largest in spring and winter,41.12% and 35.53% respectively,and proportions of influenza A H3,A H1N1,B BV,and B BY influenza in different seasons were significantly different（P<0.05）．Children aged 7 to 10 accounted for the highest proportion of influenza patients,42.13%．Among children of different ages,the proportion of influenza A H3,A H1N1,B BV,B BY had no statistically significant difference（P>0.05）．The proportion of children with influenza in 2020 was the highest at 43.40%,followed by 29.70% in 2022 and 26.90% in 21;in different years there is a statistically significant difference in the proportion of children with influenza in winter（P<0.05）．There is no statistically significant difference in the proportion of children with influenza of all ages in different years（P>0.05）．The preportions of influenza A H3 and A H1N1,B BV and B BY viruses in each year,had no statistically significant difference（P>0.05）．Conclusions Children aged 7 to 10 years old are a high-risk group for influenza,and influenza A is the main type of infection in children．Influenza A viruses are more common in spring and winter．Changes in prevention and control policies during the new coronavirus pneumonia epidemic have an impact on the epidemic of influenza．Therefore,prevention of influenza A for children aged 7 to 10 years old in spring and winter should be strengthened．
《流行病学》作为公共卫生与预防医学的主干课程,对于培养高质量公共卫生人才至关重要。在大数据、人工智能和互联网技术迅猛发展的时代背景下,传统的单一教学模式已无法满足现代医学教育的需求。线上线下混合教学模式逐渐成为高等医学教育的主要教学方式。这种模式结合了线上资源的丰富性和线下课堂的互动性,能够拓展教学内容,提高学生的自主学习能力。通过大数据分析和人工智能技术,可以提供个性化学习体验和实时反馈,优化教学效果。然而,这一模式在实际应用中仍面临诸如资源整合不够、师生互动不足等挑战。文章以广州医科大学为例,分析了《流行病学》课程中混合教学模式的优势与不足,并提出了针对性的改进建议。通过这些建议,旨在提升混合教学模式的有效性,为未来教学改革提供新的思路和参考。
Epidemiology,as a core course in public health and preventive medicine,is crucial for training high-quality public health professionals．With the rapid development of big data,artificial intelligence,and internet technologies,traditional single-mode teaching methods no longer meet the demands of modern education．The blended learning model,combining online and offline teaching,has gradually become a primary method in higher medical education．This model integrates the richness of online resources with the interactivity of offline classes,expanding instructional content and enhancing students' self-directed learning abilities．By leveraging big data analysis and artificial intelligence,personalized learning experiences and real-time feedback can be provided to optimize teaching effectiveness．However,this model still faces challenges such as inadequate resource integration and insufficient teacher-student interaction in practical application．This study uses a medical university as a case study to analyze the advantages and limitations of the blended learning model in epidemiology courses and proposes targeted improvement suggestions．The aim is to enhance the effectiveness of blended learning and provide new insights and references for future teaching reforms．
目的 探讨我国南方地区鲍曼不动杆菌流行株ST457毒力进化方向。方法 收集南方地区5家大型三甲医院2012年—2015年血和/或痰标本来源的鲍曼不动杆菌菌株,运用不同毒力实验,比较ST457与其他CC92流行克隆株与非流行克隆株的毒力差异。结果 ST457感染患者早期死亡率高;ST457菌株平均产生物膜能力低于ST195和ST208;83.3%的鲍曼不动杆菌临床分离菌株在血清的存活率大于60%,其中43.3%的菌株可在血清内快速繁殖,不同ST型组间、菌血症组和非菌血症组间无差异;不同ST型菌株竞争后,ST457未展现出竞争优势。结论 与传统CC92流行株相比,ST457毒力表型与传统的CC92流行株类似,提示CC92克隆株共进化能力。部分流行株短时间内在血清中快速繁殖,提示其条件致病后潜在的血流感染的能力。
Objective To investigate the virulence of the prevalent clone ST457 of Acinetobacter baumannii in Southern China. Methods Isolates from sputum and/or blood samples from 2012 to 2015 in 5 large differences between clonal complex 92(CC92) and non-CC92 were estimated by biofilm assay, competition assay and serum assay. Results Patients with ST457 infection had high early mortality. The average biofilm production of ST457 was significantly lower than that of ST195 and ST208. In serum assay, 83.3% isolates survived in the serum with over 60% survival rate, of which 43.3% strains reproduced in the serum, with no difference between STs or between bacteremia and non-bacteremia group. After competing with different ST strains, ST457 shows no competitive advantage. Conclusions ST457 had a similar virulence phenotype with the traditional prevalent CC92 clone, suggesting the co-evolutionary ability for CC92 clone. Some clinical isolates were survived in human serum, suggesting the potential capacity of bloodstream infection.
目的 观察广州花都地区新冠疫情发生前后呼吸道肺炎支原体（MP）感染的流行病学特征,分析2018年—2019年（疫情前）和2020年—2021年（疫情后）期间的流行病学特点,为降低本地区的MP感染提供预防医学依据。方法 收集2018年1月—2021年12月于广州市中西医结合医院就诊的呼吸道感染患者51 005例,采用胶体金法检测血Mp- IgM抗体,对疫情前后年度、季节、性别和年龄段MP感染情况进行回顾性分析。结果 51 005例呼吸道感染患者中,MP感染总阳性率12.03%（6 134/5 1005）,新冠疫情发生前（2018—2019）阳性率为19.11%（5 161/27 010）,高于新冠疫情后（2020—2021）MP阳性率为4.06%（973/23 995）（χ2=2 721.32,P<0.001）。2018年和2019年（疫情前）不同季节MP检出率分别为：春季11.87%和17.76%,夏季13.26%和22.21%,秋季17.93%和24.59%,冬季14.20%和14.47%,以夏秋季阳性率高于春季和冬季;疫情后两年四季MP感染率均低于疫情前（P<0.001）,春季和冬季阳性率略高于夏秋季节。4年来呼吸道感染患者中MP感染率男性（13.87%）与女性（14.09%）比较差异无统计学意义。且疫情前（18.91%,19.28%）显著高于疫情后（2.49%,2.69%）,同时期不同性别阳性率比较差异无统计学意义。婴幼儿组（0~6岁）,学龄儿童组（>6~14岁）,青少年组（>14~30岁）,中青年组（>30~60岁）及老年组（>60岁）MP阳性检出率分别为20.89%、29.98%、9.29%、5.55%和4.57%,不同年龄组间MP感染率差异有统计学意义（P<0.05）,以学龄期儿童多见,其次为婴幼儿。结论 新冠疫情前后4年MP感染流行特点为：新冠疫情前后MP感染无性别差异;学龄期儿童和婴幼儿是高发人群;一年四季均可发病,疫情前两年夏秋季高发,疫情后两年四季发病率均较低且差异变小;新冠疫情下广州花都地区MP感染率显著低于疫情前,2019-nCov防控措施（佩戴口罩等）也减少了MP感染。
目的 本研究对广州地区5家教学医院的鲍曼不动杆菌进行分子流行病学分析。方法 5家教学医院共采集138株鲍曼不动杆菌,利用多位点序列分型(multilocus sequence typing,MLST)及eBURST算法评价菌株之间的遗传关系。结果 MLST将138株鲍曼不动杆菌分为8个已有序列类型(STs),分别为ST195、ST208、ST457、ST136、ST254、ST548、ST445和ST53,还发现17个新STs。其中ST195的数量最多,占所有分离株的35.5%(49/138),其次为ST208,占所有分离株的21.0%(29/138)。eBURST算法分析显示以ST195为预测祖先型的克隆复合体(clonal complex, CC) 195在医院环境中广泛传播。结论 鲍曼不动杆菌CC195是广州地区的流行克隆,各家医疗机构应根据其自身实际制定感染防控策略。
Objective We analyzed the molecular epidemiology of A.baumannii isolated from 5 teaching hospitals in Guangzhou to identify the epidemic clone in this area. Methods A total of 138 strains of A.baumannii were collected from 5 teaching hospitals, and the genetic relationship was evaluated by multilocus sequence typing (MLST) and eBURST algorithm. Results MLST divided 138 strains of A.baumannii into 8 existing sequence types (STs), namely ST195, ST208, ST457, ST136, ST254, ST548, ST445 and ST53, and 17 new STs. Among them, ST195 had the largest number, accounting for 35.5% (49/138) of all isolates, followed by ST208, accounting for 21.0% (29/138) of all isolates. eBURST algorithm showed that the clonal complex (CC) 195, the predicted founder ST195, was widely spread in the hospital environment. Conclusion A.baumannii CC195 was an epidemic clone in Guangzhou area. Medical institution should develop infection prevention and control strategies according to its own actual conditions.
目的 探讨重组人干扰素α2b喷雾剂治疗儿童流行性感冒的疗效及安全性。方法 选取我院2017年1月—2020年2月所收治的80例儿童流行性感冒患者,按1:1随机分为实验组及对照组,每组患儿40例,对照组患者给予奥司他韦治疗,实验组患者在对照组治疗基础上联合重组人干扰素α2b喷雾剂治疗,对比2组患者的疗效及安全性。结果 实验组患儿咽痛症状消失时间(2.01±0.23)d、体温恢复正常时间(2.18±0.30)d、咳嗽症状消失时间(1.68±0.52)d、治疗时间(5.41±0.36)d均短于对照组(t=26.001、9.766、19.277、28.089,P＜0.05);实验组患儿治疗有效率95.0%高于对照组治疗有效率(χ2=4.114,P＜0.05);实验组患儿的不良反应发生率低于对照组(χ2=4.021,P＜0.05)。结论 重组人干扰素α2b喷雾剂治疗儿童流行性感冒的方案可获取较为理想的治疗效果,保证患儿用药安全性,尽快缓解患儿的临床症状,促使患儿病情康复,促进患儿健康生长,该治疗方案可在临床中推广应用。
Objective To explore the efficacy and safety of recombinant human interferon α2b spray in the treatment of influenza in children. Methods Eighty children with influenza who were admitted to our hospital from January 2017 to February 2020 were randomly divided into experimental group and control group evenly, with 40 children in each group. Oseltamivir treatment was given to the control group, the experimental group was treated with recombinant human interferon α2b spray on the basis of oseltamivir, and the efficacy and safety of the two groups were compared. Results In the experimental group, the time for the disappearance of sore throat was (2.01±0.23) d, the time for the body temperature returned to normal was (2.18±0.30) d, the time for the cough to disappear was (1.68±0.52) d, and the treatment time was (5.41±0.36) d, which were all shorter than the control group (t=26.001, 9.766, 19.277, 28.089, P<0.05). The treatment effective rate of children in the experimental group was 95.0%, which was significantly higher than that in the control group (χ2=4.114, P<0.05); the incidence of adverse reactions in experimental group was significantly lower than that in the control group (χ2= 4.021, P<0.05). Conclusions The recombinant human interferon α2b spray for the treatment of influenza in children could obtain a more ideal therapeutic effect, ensure the safety of the children's medication, relieve the clinical symptoms as soon as possible, promote the improvement of the children's condition, and promote the healthy growth of the children. The treatment plan can be promoted and applied in clinical practice.
目的 了解广州市肾综合征出血热住院病例临床表现和流行病学特征,分析患者出现重症的影响因素,为加深疾病认知和识别重症提供科学依据。方法 回顾性选取2014年1月以来在广州市二级及以上医疗机构住院的明确诊断为肾综合征出血热的患者572例作为本研究研究对象,自行设计问卷,收集患者流行病学史、临床表现和实验室检测结果,采用多因素Logistic回归分析识别患者重症HFRS的影响因素。结果 572例患者中男406人,女166人,男女比2.45:1,年龄最小者14岁,最大89岁,平均年龄(41.21±14.16)岁。临床表现以发热、起病急、乏力为主,三者分别占比96.33%、88.29%和82.32%,重症病例93例,重症率16.26%,不同颈红、胸红、腹痛、腹泻、恶心、呕吐、眼睑浮肿、黄疸、少尿或无尿、低血压、休克、白细胞计数减少、尿膜状物情况和鼠类暴露情况的患者重症发生率差异有统计学意义(均 P<0.05),多因素Logistic回归分析结果显示年龄为40～49岁、呕吐、休克、房内有老鼠及食物粮食无防鼠设备是患者发生重症的危险因素,其OR值和95%CI分别为2.712(95%CI:1.039~7.077)、2.99(95%CI:1.462~6.114)、5.822(95%CI:1.891~17.927)和3.292(95%CI:1.479 ~7.327)。结论 临床表现有呕吐和休克症状以及有明确的啮齿类动物暴露史者重症的风险更高,在今后的防治中,应进一步加强健康宣传教育,广泛开展灭鼠活动,临床上对存在高危风险的病例进行早期干预以提高患者的预后效果。
Objective To understand the clinical manifestations and epidemiological characteristics of hospitalized cases of hemorrhagic fever with renal syndrome in Guangzhou, analyze the influencing factors of patients with severe illness, and provide scientific basis for deepening disease recognition and identifying severe illness. Methods A retrospective selection of 572 patients with a clear diagnosis of hemorrhagic fever with renal syndrome who were hospitalized in second-level and higher medical institutions in Guangzhou since January 2014 were selected as the research objects. Questionnaires were designed and the epidemiological history clinical manifestations and laboratory test results of patients were collected. Multivariate logistic regression analysis was used to identify the influencing factors of patients with severe HFRS. Results Among the 572 patients, there were 406 males and 166 females. The male-to-female ratio was 2.45:1. The youngest was 14 years old, the oldest was 89 years old, and the average age was (41.21±14.16)years old. The clinical manifestations were mainly fever, acute onset, and fatigue, which accounted for 96.33%, 88.29% and 82.32%. There were 93 severe cases with a severe rate of 16.26%. Different neck redness, chest redness, abdominal pain, diarrhea, nausea, and nausea, vomiting, eyelid edema, jaundice, oliguria or anuria, hypotension, shock, decreased white blood cell count, urine membranes and rodent exposure, there were statistically significant differences in the incidence of severe illness (all P<0.05). The logistic regression analysis of factors showed that the age of 40-49 years, vomiting, shock, the presence of rats in the room, and food without rodent-proof equipment were risk factors for severe illness. The OR values and 95%CI were 2.712 (95 %CI: 1.039-7.077), 2.99 (95%CI: 1.462-6.114), 5.822 (95%CI: 1.891-17.927) and 3.292 (95%CI: 1.479-7.327). Conclusion Patients with clinical manifestations of vomiting and shock symptoms and a clear history of rodent exposure are at higher risk of severe illness. In the future prevention and treatment, health promotion and education should be further strengthened, rodent control activities should be carried out extensively, and early intervention is taken clinically to improve the patient's healing effect.
