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Fulminant Myocarditis with SARS-CoV-2 Infection: A Narrative Review from the Case Studies 感染SARS-CoV-2的暴发性心肌炎:病例研究综述
Pub Date : 2024-03-04 DOI: 10.1155/2024/9000598
Ryohei Ono, Togo Iwahana, Kaoruko Aoki, Hirotoshi Kato, Sho Okada, Yoshio Kobayashi
One of the severe complications of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is myocarditis. However, the characteristics of fulminant myocarditis with SARS-CoV-2 infection are still unclear. We systematically reviewed the previously reported cases of fulminant myocarditis associated with SARS-CoV-2 infection from January 2020 to December 2022, identifying 108 cases. Of those, 67 were male and 41 female. The average age was 34.8 years; 30 patients (27.8%) were ≤20 years old, whereas 10 (9.3%) were ≥60. Major comorbidities included hypertension, obesity, diabetes mellitus, asthma, heart disease, gynecologic disease, hyperlipidemia, and connective tissue disorders. Regarding left ventricular ejection fraction (LVEF) at admission, 93% of the patients with fulminant myocarditis were classified as having heart failure with reduced ejection fraction (LVEF ≤ 40%). Most of the cases were administered catecholamines (97.8%), and mechanical circulatory support (MCS) was required in 67 cases (62.0%). The type of MCS was extracorporeal membrane oxygenation (n = 56, 83.6%), percutaneous ventricular assist device (Impella®) (n = 19, 28.4%), intra-aortic balloon pumping (n = 12, 12.9%), or right ventricular assist device (n = 2, 3.0%); combination of these devices occurred in 20 cases (29.9%). The average duration of MCS was 7.7 ± 3.8 days. Of the 76 surviving patients whose cardiac function was available for follow-up, 65 (85.5%) recovered normally. The overall mortality rate was 22.4%, and the recovery rate was 77.6% (alive: 83 patients, dead: 24 patients; outcome not described: 1 patient).
严重急性呼吸系统综合征冠状病毒 2(SARS-CoV-2)感染的严重并发症之一是心肌炎。然而,SARS-CoV-2 感染引起的暴发性心肌炎的特征仍不清楚。我们系统回顾了 2020 年 1 月至 2022 年 12 月之前报道的与 SARS-CoV-2 感染相关的暴发性心肌炎病例,共发现 108 例。其中男性 67 例,女性 41 例。平均年龄为 34.8 岁;30 名患者(27.8%)年龄小于 20 岁,10 名患者(9.3%)年龄大于 60 岁。主要合并症包括高血压、肥胖、糖尿病、哮喘、心脏病、妇科疾病、高脂血症和结缔组织疾病。关于入院时的左心室射血分数(LVEF),93%的暴发性心肌炎患者被归类为射血分数降低型心力衰竭(LVEF≤40%)。大多数病例服用了儿茶酚胺类药物(97.8%),67 例患者(62.0%)需要机械循环支持(MCS)。机械循环支持的类型包括体外膜氧合(56 例,83.6%)、经皮心室辅助装置(Impella®)(19 例,28.4%)、主动脉内球囊反搏(12 例,12.9%)或右心室辅助装置(2 例,3.0%);20 例(29.9%)患者同时使用了这些装置。MCS 的平均持续时间为 7.7 ± 3.8 天。在心功能可接受随访的 76 名存活患者中,65 人(85.5%)恢复正常。总死亡率为 22.4%,康复率为 77.6%(存活:83 例患者;死亡:24 例患者;结果未描述:1 例患者)。
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引用次数: 0
Isolation and Identification of Effective Probiotics on Drug-Resistant Acinetobacter baumannii Strains and Their Biofilms 分离和鉴定对耐药鲍曼不动杆菌菌株及其生物膜有效的益生菌
Pub Date : 2024-02-26 DOI: 10.1155/2024/8570521
Zahra Abbasi, Seyed Mahdi Ghasemi, Yasaman Ahmadi, Dariush Shokri
Introduction. This study aimed to identify, assess, and isolate strong lactobacilli demonstrating broad antibacterial and anti-biofilm activity against drug-resistant strains of Acinetobacter baumannii. Additionally, the mechanism of inhibition of these organisms was to be determined. Methods. Over a 6-month period (from December 2021 to June 2022), 53 clinical A. baumannii strains were collected from clinical samples. Twenty probiotic strains were isolated from local dairy products. Antibacterial activity of Lactobacillus strains’ cell-free supernatant (CFS) was identified using the agar well diffusion method and the microbroth dilution test. Anti-biofilm effect was performed by the microtiter plate assay. The MTT assay was also used to look into the probiotics’ cytotoxic effects on the L929 fibroblast cell line. Results. During the 6-month period, 53 clinical A. baumannii strains were obtained and identified. Out of 20 lactobacillus strains, the CFS of a lactobacillus strain (named L9) showed an inhibitory effect against all A. baumannii strains. Using the broth microdilution method, it was shown that the minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) of CFS extracts of L9 strains against A. baumannii strains were both ¼ mg/mL. The result of the anti-biofilm showed that the selected probiotic could inhibit biofilm formation. The most common organic acid produced by all Lactobacillus strains, according to the HPLC method, was lactic acid, which was followed by acetic acid. The L929 fibroblast cell line was used in the cytotoxicity assay, which revealed that 100% of the cells in the L929 fibroblast cell line survived treatment with successive doses of CFSs for a full day. Conclusion. The probiotic strain isolated from local yogurt in this study showed potential anti-biofilm and antimicrobial properties against all drug-resistant Acinetobacter isolates. Given the increasing interest in probiotic microorganisms based on their high health benefits, further studies are recommended on the mechanisms of action between probiotics and A. baumannii strains to find new solutions for biological control and treatment of these infections without the use of antibiotics.
简介。本研究旨在鉴定、评估和分离对鲍曼不动杆菌耐药菌株具有广泛抗菌和抗生物膜活性的强力乳酸菌。此外,还要确定这些微生物的抑制机制。研究方法在 6 个月内(2021 年 12 月至 2022 年 6 月),从临床样本中收集了 53 株临床鲍曼不动杆菌。从本地乳制品中分离出 20 株益生菌株。使用琼脂井扩散法和微流稀释试验鉴定了乳酸菌菌株无细胞上清液(CFS)的抗菌活性。抗生物膜效果是通过微孔板检测法进行的。此外,还使用 MTT 试验研究了益生菌对 L929 成纤维细胞系的细胞毒性作用。研究结果在 6 个月的时间里,共获得并鉴定了 53 株临床鲍曼不动杆菌。在 20 株乳酸杆菌中,一株乳酸杆菌(名为 L9)的 CFS 对所有鲍曼尼氏菌菌株均有抑制作用。肉汤微稀释法表明,L9 菌株的 CFS 提取物对鲍曼尼氏菌的最低抑菌浓度(MIC)和最低杀菌浓度(MBC)均为 ¼ 毫克/毫升。抗生物膜的结果表明,所选益生菌能抑制生物膜的形成。根据高效液相色谱法,所有乳酸杆菌菌株产生的最常见有机酸是乳酸,其次是乙酸。细胞毒性试验使用了 L929 成纤维细胞系,结果显示,在连续使用一定剂量的 CFS 处理一整天后,L929 成纤维细胞系中的细胞 100%存活。结论本研究中从本地酸奶中分离出的益生菌株对所有耐药性醋酸杆菌分离株都具有潜在的抗生物膜和抗菌特性。鉴于益生菌微生物对健康的益处越来越大,建议进一步研究益生菌与鲍曼不动杆菌菌株之间的作用机制,以找到不使用抗生素的生物控制和治疗这些感染的新方案。
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引用次数: 0
Epidemiology and Performances of Typhidot Immunoassay and Widal Slide Agglutination in the Diagnosis of Typhoid Fever in Febrile Patients in Bafoussam City, Cameroon: A Cross-Sectional Comparative Study 喀麦隆巴富萨姆市发热病人伤寒诊断中的流行病学及typhidot免疫测定和Widal玻片凝集法的性能:横断面比较研究
Pub Date : 2024-02-22 DOI: 10.1155/2024/6635067
Aurelie Dahlia Yemeli Piankeu, Siméon Pierre Chegaing Fodouop, Michel Noubom, Emmanuel Boris Gomseu Djoumsie, Georges Ful Kuh, Donatien Gatsing
Background. Enteric fever is a great public health problem associated with significant illness and death in many endemic countries, and its clinical diagnosis is still daunting. The aim of this study was to determine the prevalence and risk factors of S. Typhi among febrile patients in Bafoussam and to evaluate the diagnostic performances of Widal and Typhidot tests. Methods. This was a cross-sectional study among 336 participants visiting three hospitals in Bafoussam from August 1, 2021, to November 31, 2021. Widal test, Typhidot assay, and stool culture were used to screen for salmonellosis with the help of a structured questionnaire. Results. The prevalence of S. Typhi and S. Paratyphi was found to be 62.85% and 37.14%, respectively. The overall prevalence of typhoid fever using stool culture was 20.86%. The significant risk factors associated with enteric fever were lack or insufficient knowledge of typhoid fever, poor hand hygiene, and anorexia. Typhidot immunoassay was more sensitive (100%) and specific (82.3%) than the Widal test. Both were analytically inferior to stool culture. Conclusions. High prevalence of typhoid fever (20.86%) was observed which was largely associated with lack or insufficient knowledge of typhoid fever, poor hygiene measure, and anorexia as risk factors. The performances of the Widal and Typhidot test against a stool culture were inferior but with Typhidot better than the Widal slide agglutination.
背景。在许多肠道热流行的国家,肠道热是一个严重的公共卫生问题,会导致严重的疾病和死亡,但其临床诊断仍然十分困难。本研究的目的是确定巴富萨姆发热病人中伤寒杆菌的流行率和风险因素,并评估威达试验和泰氏试验的诊断效果。研究方法这是一项横断面研究,研究对象为2021年8月1日至2021年11月31日期间前往巴富萨姆三家医院就诊的336名患者。在结构化问卷的帮助下,使用威达检验、Typhidot 检验和粪便培养来筛查沙门氏菌病。结果显示发现伤寒杆菌和副伤寒杆菌的流行率分别为 62.85% 和 37.14%。使用粪便培养法得出的伤寒总发病率为 20.86%。与肠道热相关的重要风险因素是缺乏伤寒知识或知识不足、手部卫生差和厌食。typhidot免疫测定的灵敏度(100%)和特异性(82.3%)均高于威达试验。两者的分析结果都不如粪便培养。结论伤寒的发病率很高(20.86%),这主要与缺乏伤寒知识或知识不足、卫生措施不力和厌食等危险因素有关。针对粪便培养物的威达试验和酪胺试验性能较差,但酪胺试验优于威达玻片凝集试验。
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引用次数: 0
Psychological Status of Medical Staff in Obstetrics and Gynecology Hospitals during the Omicron Pandemic Outbreak in China 奥姆克隆疫情爆发期间中国妇产科医院医务人员的心理状况
Pub Date : 2024-02-21 DOI: 10.1155/2024/9164605
Shuting Bao, Bangwu Chen, Ying Hu, Chee Shin Lee, Qi Wu, Menglin Zhou, Mengkai Du, Shuqi Zhu, Biao Xie, Jiuqiong Hu, Zhaoxia Liang
Background. Medical staff in China faced great challenges and psychological and physiological changes of varying degrees during the omicron epidemic outbreak. It is important to recognize the potential impact of these challenges on the mental health of medical staff and to provide appropriate resources and support to mitigate their effects. Methods. A total of 354 medical staff in two obstetrics and gynecology hospitals of different grades were included in this survey using convenience sampling. The cross-sectional self-report questionnaires survey was conducted using the Basic Characteristics Questionnaire, Generalized Anxiety Disorder (GAD-7), Patient Health Questionnaire (PHQ-9), and Insomnia Severity Index (ISI). Results. There were 169 (47.7%) participants suffering from anxiety disorder. Working with fever, working in obstetrics, and working with protective clothing were the risk factors for anxiety in medical staff . One hundred and ninety-six (55.4%) participants were depressed. Working with fever and working in obstetrics were the risk factors for depression in medical staff
背景。中国医务人员在欧米茄疫情爆发期间面临着巨大的挑战,心理和生理都发生了不同程度的变化。认识到这些挑战对医务人员心理健康的潜在影响并提供适当的资源和支持以减轻其影响非常重要。调查方法本次调查采用便利抽样法,共纳入了两家不同级别妇产科医院的 354 名医务人员。采用基本特征问卷、广泛性焦虑症(GAD-7)、患者健康问卷(PHQ-9)和失眠严重程度指数(ISI)进行横断面自我报告问卷调查。结果。共有 169 人(47.7%)患有焦虑症。发烧时工作、产科工作和穿防护服工作是医务人员焦虑的风险因素。有 196 人(55.4%)患有抑郁症。发烧和产科工作是医务人员患抑郁症的风险因素。有 117 人(33.1%)患有失眠症。发烧时工作、高学历和严重 COVID-19 感染是医务人员失眠的风险因素。此外,省级医院的医务人员比县级医院的医务人员更焦虑和抑郁。最后,在产科工作的医务人员中发烧者更多。结论焦虑症、抑郁症和失眠在猩红热大流行期间的妇产科医务人员中很常见。在此期间,医院应提供更多的心理辅导资源和更合理的人员安排,并禁止发烧时工作,尤其是在省级医院。
{"title":"Psychological Status of Medical Staff in Obstetrics and Gynecology Hospitals during the Omicron Pandemic Outbreak in China","authors":"Shuting Bao, Bangwu Chen, Ying Hu, Chee Shin Lee, Qi Wu, Menglin Zhou, Mengkai Du, Shuqi Zhu, Biao Xie, Jiuqiong Hu, Zhaoxia Liang","doi":"10.1155/2024/9164605","DOIUrl":"https://doi.org/10.1155/2024/9164605","url":null,"abstract":"<i>Background</i>. Medical staff in China faced great challenges and psychological and physiological changes of varying degrees during the omicron epidemic outbreak. It is important to recognize the potential impact of these challenges on the mental health of medical staff and to provide appropriate resources and support to mitigate their effects. <i>Methods</i>. A total of 354 medical staff in two obstetrics and gynecology hospitals of different grades were included in this survey using convenience sampling. The cross-sectional self-report questionnaires survey was conducted using the Basic Characteristics Questionnaire, Generalized Anxiety Disorder (GAD-7), Patient Health Questionnaire (PHQ-9), and Insomnia Severity Index (ISI). <i>Results</i>. There were 169 (47.7%) participants suffering from anxiety disorder. Working with fever, working in obstetrics, and working with protective clothing were the risk factors for anxiety in medical staff <span><svg height=\"12.7178pt\" style=\"vertical-align:-3.42947pt\" version=\"1.1\" viewbox=\"-0.0498162 -9.28833 23.471 12.7178\" width=\"23.471pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,4.498,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,15.84,0)\"></path></g></svg><span></span><span><svg height=\"12.7178pt\" style=\"vertical-align:-3.42947pt\" version=\"1.1\" viewbox=\"27.053183800000003 -9.28833 26.453 12.7178\" width=\"26.453pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,27.103,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,33.343,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,36.307,0)\"><use xlink:href=\"#g113-49\"></use></g><g transform=\"matrix(.013,0,0,-0.013,42.547,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,48.787,0)\"></path></g></svg>.</span></span> One hundred and ninety-six (55.4%) participants were depressed. Working with fever and working in obstetrics were the risk factors for depression in medical staff <span><svg height=\"12.7178pt\" style=\"vertical-align:-3.42947pt\" version=\"1.1\" viewbox=\"-0.0498162 -9.28833 23.471 12.7178\" width=\"23.471pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"><use xlink:href=\"#g113-41\"></use></g><g transform=\"matrix(.013,0,0,-0.013,4.498,0)\"><use xlink:href=\"#g113-113\"></use></g><g transform=\"matrix(.013,0,0,-0.013,15.84,0)\"><use xlink:href=\"#g117-91\"></use></g></svg><span></span><span><svg height=\"12.7178pt\" style=\"vertical-align:-3.42947pt\" version=\"1.1\" viewbox=\"27.053183800000003 -9.28833 26.453 12.7178\" width=\"26.453pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,27.103,0)\"><use xlink:href=\"#g113-49\"></use></g><g transform=\"matrix(.013,0,0,-0.013,33.343,0)\"><use xlink:href=\"#g113-47\"></use></g><g transform=\"matrix(.","PeriodicalId":501415,"journal":{"name":"Canadian Journal of Infectious Diseases and Medical Microbiology","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139925723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seroprevalence of IgM/IgG and Neutralizing Antibodies against SARS-CoV-2 in Unvaccinated Young Adults from Mexico Who Reported Not Having Had a Previous COVID-19 Infection 墨西哥未接种疫苗且自称未感染过 COVID-19 的年轻人中针对 SARS-CoV-2 的 IgM/IgG 和中和抗体的血清流行率
Pub Date : 2024-02-14 DOI: 10.1155/2024/8871439
Diana Lourdes Padilla-Bórquez, Mónica Guadalupe Matuz-Flores, Jorge Hernández-Bello, Gabriela Athziri Sánchez-Zuno, Samuel García-Arellano, Edith Oregon-Romero, Melva Guadalupe Herrera-Godina, Guillermo González-Estevez, Norma Patricia Adan-Bante, Jesús Alfredo Rosas-Rodríguez, José Francisco Muñoz-Valle
Background. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the virus that causes coronavirus disease 2019 (COVID-19). It is estimated that more than half of new infections are transmitted by asymptomatic people; therefore, the isolation of symptomatic people is not enough to control the spread of the disease. Methods. A total of 171 unvaccinated young adults (18–35 years) from Sonora, Mexico, who underwent a structured survey to identify prior COVID-19 infections, were included in this study. A qualitative determination of anti-SARS-CoV-2 antibodies in serum was performed by lateral flow immunoassay (Certum IgG/IgM Rapid Test™ cassette kit) and neutralizing antibodies were also determined (GenScript cPass assay). Results. A total of 36 people reported a history of COVID-19 infection, and 135 reported no history of COVID-19. In contrast, 49.6% (67/135) of individuals who had not reported a previous SARS-CoV-2 infection were seropositive to the rapid anti-SARS-CoV-2 antibody test, and 48.1% (65/135) of them had neutralizing antibodies. Conclusions. These results suggest that in young adults, SARS-CoV-2 infections could be asymptomatic in a high percentage of individuals, which could contribute in part to the slow control of the current pandemic due to the large number of asymptomatic cases that are contagious and that could be a silent spread of the virus.
背景。严重急性呼吸系统综合征冠状病毒 2(SARS-CoV-2)是导致 2019 年冠状病毒病(COVID-19)的病毒。据估计,一半以上的新感染病例是由无症状者传播的;因此,隔离有症状者不足以控制疾病的传播。方法本研究共纳入了墨西哥索诺拉州的 171 名未接种疫苗的青壮年(18-35 岁),他们接受了一项结构化调查,以确定以前是否感染过 COVID-19。采用侧流免疫分析法(Certum IgG/IgM Rapid Test™ 盒式试剂盒)对血清中的抗 SARS-CoV-2 抗体进行了定性检测,同时还检测了中和抗体(GenScript cPass 分析法)。结果共有36人报告有COVID-19感染史,135人报告没有COVID-19感染史。相比之下,在未报告有 SARS-CoV-2 感染史的人群中,49.6%(67/135)的人在快速抗 SARS-CoV-2 抗体检测中呈血清阳性,其中 48.1%(65/135)的人有中和抗体。结论这些结果表明,在青壮年中,SARS-CoV-2 感染者中可能有很高比例的人没有症状,这可能在一定程度上导致目前的大流行病控制缓慢,因为大量无症状病例具有传染性,可能是病毒的无声传播。
{"title":"Seroprevalence of IgM/IgG and Neutralizing Antibodies against SARS-CoV-2 in Unvaccinated Young Adults from Mexico Who Reported Not Having Had a Previous COVID-19 Infection","authors":"Diana Lourdes Padilla-Bórquez, Mónica Guadalupe Matuz-Flores, Jorge Hernández-Bello, Gabriela Athziri Sánchez-Zuno, Samuel García-Arellano, Edith Oregon-Romero, Melva Guadalupe Herrera-Godina, Guillermo González-Estevez, Norma Patricia Adan-Bante, Jesús Alfredo Rosas-Rodríguez, José Francisco Muñoz-Valle","doi":"10.1155/2024/8871439","DOIUrl":"https://doi.org/10.1155/2024/8871439","url":null,"abstract":"<i>Background</i>. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the virus that causes coronavirus disease 2019 (COVID-19). It is estimated that more than half of new infections are transmitted by asymptomatic people; therefore, the isolation of symptomatic people is not enough to control the spread of the disease. <i>Methods</i>. A total of 171 unvaccinated young adults (18–35 years) from Sonora, Mexico, who underwent a structured survey to identify prior COVID-19 infections, were included in this study. A qualitative determination of anti-SARS-CoV-2 antibodies in serum was performed by lateral flow immunoassay (Certum IgG/IgM Rapid Test™ cassette kit) and neutralizing antibodies were also determined (GenScript cPass assay). <i>Results</i>. A total of 36 people reported a history of COVID-19 infection, and 135 reported no history of COVID-19. In contrast, 49.6% (67/135) of individuals who had not reported a previous SARS-CoV-2 infection were seropositive to the rapid anti-SARS-CoV-2 antibody test, and 48.1% (65/135) of them had neutralizing antibodies. <i>Conclusions</i>. These results suggest that in young adults, SARS-CoV-2 infections could be asymptomatic in a high percentage of individuals, which could contribute in part to the slow control of the current pandemic due to the large number of asymptomatic cases that are contagious and that could be a silent spread of the virus.","PeriodicalId":501415,"journal":{"name":"Canadian Journal of Infectious Diseases and Medical Microbiology","volume":"174 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139759540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Epidemiology of Brucellosis in Small Ruminants of Rural and Peri-Urban Areas of Multan, Pakistan 巴基斯坦木尔坦农村和城市周边地区小反刍动物布鲁氏菌病的流行病学研究
Pub Date : 2024-02-14 DOI: 10.1155/2024/8898827
Mian Muhammad Awais, Bakhtawar Khadim, Masood Akhtar, Muhammad Irfan Anwar, Gohar Khadim, Abdul Sammad Ali Khan Shirwany, Halil Selcuk Biricik, Abdul Razzaq, Muhammad Sibtain Bhatti
Brucellosis is a widespread zoonotic disease of veterinary and public health importance with considerably higher prevalence in developing/underdeveloped countries. This study reports the prevalence and risk determinants of brucellosis in small ruminants of peri-urban and rural areas of district Multan, Southern Punjab, Pakistan. For this purpose, sera samples (n = 392) of small ruminants were collected and subjected to preliminary screening using commercially available RBPT reagents followed by serodetection of brucellosis using multispecies i-ELISA kit (ID.vet, France). All the ELISA positive samples were confirmed by PCR using genus-specific primers, and frequencies of Brucella species in positive samples were enumerated using species-specific primers. Results indicated seropositivity rates of 9.69, 9.95, and 10.20% in study population using RBPT reagents of IDEXX-USA, ID.Vet-France, and VRI-Pakistan, respectively, with a statistically nonsignificant difference . Results of ELISA showed an overall seroprevalence rate of 7.14% in target population with a slightly higher rate in sheep (7.65%) as compared to goat (6.63%) population (
布鲁氏菌病是一种广泛传播的人畜共患疾病,对兽医和公共卫生具有重要意义,在发展中国家/欠发达国家的发病率要高得多。本研究报告了布鲁氏菌病在巴基斯坦南旁遮普省木尔坦市郊区和农村地区小型反刍动物中的流行情况和风险决定因素。为此,研究人员收集了小反刍动物的血清样本(n = 392),并使用市售的 RBPT 试剂进行初步筛查,然后使用多物种 i-ELISA试剂盒(ID.vet,法国)进行布鲁氏菌病血清检测。所有 ELISA 检测呈阳性的样本都使用属特异性引物进行 PCR 确认,并使用种特异性引物计算阳性样本中布鲁氏杆菌种的频率。结果表明,使用美国 IDEXX 公司、法国 ID.Vet 公司和巴基斯坦 VRI 公司的 RBPT 试剂,研究人群的血清阳性率分别为 9.69%、9.95% 和 10.20%,差异无统计学意义。ELISA 检测结果显示,目标人群的总体血清阳性率为 7.14%,其中绵羊的阳性率(7.65%)略高于山羊(6.63%)(OR = 1.16,95% CI = 0.53,2.57)。结果显示,在所有阳性样本中,60.71%的血清阳性样本检测到了流产鲍曼,14.28%的阳性样本检测到了梅里金鲍曼。研究发现,包括体况评分、饲养设施的卫生条件、耕作制度、繁殖障碍、农民的教育状况和农民对布氏杆菌病的认识在内的风险因素与研究区小型反刍动物布氏杆菌病有显著的相关性。相反,农场/畜群规模、地区、性别、年龄、体重和胎次与布鲁氏菌病的关系不明显。总之,布鲁氏菌病在巴基斯坦木尔坦的小型反刍动物中很普遍。建议制定并实施有效的控制策略,重点提高农民对布鲁氏杆菌病的认识,以控制该地区的感染。
{"title":"Epidemiology of Brucellosis in Small Ruminants of Rural and Peri-Urban Areas of Multan, Pakistan","authors":"Mian Muhammad Awais, Bakhtawar Khadim, Masood Akhtar, Muhammad Irfan Anwar, Gohar Khadim, Abdul Sammad Ali Khan Shirwany, Halil Selcuk Biricik, Abdul Razzaq, Muhammad Sibtain Bhatti","doi":"10.1155/2024/8898827","DOIUrl":"https://doi.org/10.1155/2024/8898827","url":null,"abstract":"Brucellosis is a widespread zoonotic disease of veterinary and public health importance with considerably higher prevalence in developing/underdeveloped countries. This study reports the prevalence and risk determinants of brucellosis in small ruminants of peri-urban and rural areas of district Multan, Southern Punjab, Pakistan. For this purpose, sera samples (<i>n</i> = 392) of small ruminants were collected and subjected to preliminary screening using commercially available RBPT reagents followed by serodetection of brucellosis using multispecies i-ELISA kit (ID.vet, France). All the ELISA positive samples were confirmed by PCR using genus-specific primers, and frequencies of <i>Brucella</i> species in positive samples were enumerated using species-specific primers. Results indicated seropositivity rates of 9.69, 9.95, and 10.20% in study population using RBPT reagents of IDEXX-USA, ID.Vet-France, and VRI-Pakistan, respectively, with a statistically nonsignificant difference <span><svg height=\"12.7178pt\" style=\"vertical-align:-3.42947pt\" version=\"1.1\" viewbox=\"-0.0498162 -9.28833 23.471 12.7178\" width=\"23.471pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,4.498,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,15.84,0)\"></path></g></svg><span></span><span><svg height=\"12.7178pt\" style=\"vertical-align:-3.42947pt\" version=\"1.1\" viewbox=\"27.053183800000003 -9.28833 26.453 12.7178\" width=\"26.453pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,27.103,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,33.343,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,36.307,0)\"><use xlink:href=\"#g113-49\"></use></g><g transform=\"matrix(.013,0,0,-0.013,42.547,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,48.787,0)\"></path></g></svg>.</span></span> Results of ELISA showed an overall seroprevalence rate of 7.14% in target population with a slightly higher rate in sheep (7.65%) as compared to goat (6.63%) population (<span><svg height=\"11.7782pt\" style=\"vertical-align:-3.42938pt\" version=\"1.1\" viewbox=\"-0.0498162 -8.34882 18.973 11.7782\" width=\"18.973pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"><use xlink:href=\"#g113-113\"></use></g><g transform=\"matrix(.013,0,0,-0.013,11.342,0)\"></path></g></svg><span></span><span><svg height=\"11.7782pt\" style=\"vertical-align:-3.42938pt\" version=\"1.1\" viewbox=\"22.555183800000002 -8.34882 28.184 11.7782\" width=\"28.184pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,22.605,0)\"><use xlink:href=\"#g113-49\"></use></g><g transform=\"matrix(.013,0,0,-0.013,28.845,0)\"><use xlink:href=\"#g113-47\"></use></g><g transform=\"matrix(.013,0,0,-0.013,31.809,0)\"></path></g><g transform=\"matrix(.013,0,0,","PeriodicalId":501415,"journal":{"name":"Canadian Journal of Infectious Diseases and Medical Microbiology","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139759564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Different SARS-CoV-2 Testing Strategies in the Emergency Department on Length of Stay and Clinical Outcomes: A Randomised Controlled Trial 急诊科不同的 SARS-CoV-2 检测策略对住院时间和临床结果的影响:随机对照试验
Pub Date : 2024-02-14 DOI: 10.1155/2024/9571236
Kira Louisa Boldt, Myrto Bolanaki, Fabian Holert, Antje Fischer-Rosinský, Anna Slagman, Martin Möckel
The turn-around-time (TAT) of diagnostic and screening measures such as testing for SARS-CoV-2 can affect a patient’s length of stay (LOS) in the hospital as well as the emergency department (ED). This, in turn, can affect clinical outcomes. Therefore, a reliable and time-efficient SARS-CoV-2 testing strategy is necessary, especially in the ED. In this randomised controlled trial, n = 598 ED patients presenting to one of three university hospital EDs in Berlin, Germany, and needing hospitalisation were randomly assigned to two intervention groups and one control group. Accordingly, different SARS-CoV-2 testing strategies were implemented: rapid antigen and point-of-care (POC) reverse transcription polymerase chain reaction (rtPCR) testing with the Roche cobas® Liat® (LIAT) (group one n = 198), POC rtPCR testing with the LIAT (group two n = 197), and central laboratory rtPCR testing (group three, control group n = 203). The median LOS in the hospital as an inpatient across the groups was 7 days. Patients’ LOS in the ED of more than seven hours did not differ significantly, and furthermore, no significant differences were observed regarding clinical outcomes such as intensive care unit stay or death. The rapid and POC test strategies had a significantly () shorter median TAT (group one 00:48 h, group two 00:21 h) than the regular central laboratory rtPCR test (group three 06:26 h). However, fast SARS-CoV-2 testing strategies did not reduce ED or inpatient LOS significantly in less urgent ED admissions. Testing strategies should be adjusted to the current circumstances including crowding, SARS-CoV-2 incidences, and patient cohort. This trial is registered with DRKS00023117.
诊断和筛查措施(如 SARS-CoV-2 检测)的周转时间(TAT)会影响患者在医院和急诊科(ED)的住院时间(LOS)。这反过来又会影响临床结果。因此,有必要制定一种可靠、省时的 SARS-CoV-2 检测策略,尤其是在急诊室。在这项随机对照试验中,在德国柏林三所大学医院急诊科就诊并需要住院治疗的 598 名急诊科患者被随机分配到两个干预组和一个对照组。因此,采用了不同的 SARS-CoV-2 检测策略:使用罗氏 cobas® Liat® (LIAT) 进行快速抗原和床旁点 (POC) 反转录聚合酶链反应 (rtPCR) 检测(第一组 n = 198)、使用 LIAT 进行 POC rtPCR 检测(第二组 n = 197)和中心实验室 rtPCR 检测(第三组,对照组 n = 203)。各组住院病人的中位住院时间均为 7 天。患者在急诊室的住院时间超过 7 小时没有明显差异,此外,在重症监护室住院或死亡等临床结果方面也没有观察到明显差异。快速和 POC 检测策略的中位 TAT(第一组 00:48小时,第二组 00:21小时)明显短于常规中心实验室 rtPCR 检测(第三组 06:26小时)。然而,快速 SARS-CoV-2 检测策略并不能显著缩短急诊室或住院病人的住院时间。检测策略应根据当前情况进行调整,包括拥挤程度、SARS-CoV-2发病率和患者群。该试验的注册号为 DRKS00023117。
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引用次数: 0
Corynebacterium striatum: A True Pathogen in Chronic Contiguous Osteomyelitis 纹状体棒状杆菌:慢性连续性骨髓炎的真正病原体
Pub Date : 2024-02-02 DOI: 10.1155/2024/5020721
Grishma R. Trivedi, Shehzad S. Merchant
Objective/Purpose. Chronic contiguous osteomyelitis (CCO) is a well-recognized clinical condition. Causative factors include direct trauma, prior surgery, or underlying comorbidities like diabetes and vascular insufficiency. Staphylococci especially S. aureus, Streptococci especially beta-hemolytic Streptococci, Gram-negative bacilli, and anaerobes are the most common pathogens isolated. Corynebacterium striatum (C. striatum) is a ubiquitous Gram-positive rod that colonizes the skin and mucous membranes of normal hosts and hospitalized patients. The pathogenic potential of C. striatum has only been reported in immunocompromised hosts and in patients with retained foreign bodies and prosthetic devices. However, it is not a known causative agent of chronic contiguous osteomyelitis. Design/Method. We recognized seven cases of CCO whereby amidst polymicrobial growth, C. striatum appeared to be a true pathogen and required targeted treatment along with surgical intervention. Main Outcome Measures. A pre-post analysis was used to assess the outcome. Results. All patients were cured after successful completion of an antibiotic course with a resolution of infection. Cure was defined as granulation of the infected wound and resolution of clinical symptoms at outpatient follow-up between 6 and 8 weeks. Conclusion. This series emphasizes that C. striatum is often a true pathogen in the setting of CCO. When isolated in polymicrobial infections, a targeted antibiotic therapy towards this pathogen along with other causative pathogens accompanied by surgical intervention is typically required for a successful cure of CCO.
目标/目的。慢性毗连性骨髓炎(CCO)是一种公认的临床病症。致病因素包括直接创伤、既往手术或糖尿病和血管功能不全等潜在合并症。葡萄球菌(尤其是金黄色葡萄球菌)、链球菌(尤其是β-溶血性链球菌)、革兰氏阴性杆菌和厌氧菌是最常见的病原体。纹状杆菌(C. striatum)是一种无处不在的革兰氏阳性杆菌,在正常宿主和住院病人的皮肤和粘膜上定植。只有在免疫力低下的宿主以及有异物和假体装置残留的患者中才有关于横纹链球菌致病可能性的报道。不过,它还不是慢性毗连性骨髓炎的已知致病菌。设计/方法。我们确认了 7 例 CCO 病例,在这些病例中,纹状体杆菌似乎是真正的病原体,需要进行有针对性的治疗和手术干预。主要结果测量。采用前后分析法评估结果。结果。所有患者在成功完成抗生素疗程并消除感染后均治愈。治愈的定义是感染伤口肉芽生长,并在 6 至 8 周的门诊随访中消除临床症状。结论该系列研究强调,纹状体杆菌通常是 CCO 的真正病原体。当在多微生物感染中分离出这种病原体时,通常需要针对这种病原体和其他致病病原体进行有针对性的抗生素治疗,并辅以手术干预,才能成功治愈 CCO。
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引用次数: 0
Molecular Epidemiology of Escherichia coli Resistant to Carbapenems, Fluoroquinolones, and Aminoglycosides Isolated from One of the Largest Hospitals in Vietnam in 2014–2019 2014-2019年越南最大医院之一分离的对碳青霉烯类、氟喹诺酮类和氨基糖苷类药物耐药的大肠埃希菌的分子流行病学研究
Pub Date : 2024-01-31 DOI: 10.1155/2024/2711353
Tohru Miyoshi-Akiyama, Do Van Thanh, Truong Thai Phuong, Nguyen Quang Huy, Pham Thi Phuong Thuy, Teruo Kirikae, Pham Hong Nhung, Norio Ohmagari
Introduction. Multidrug-resistant (MDR) Gram-negative bacilli including carbapenem-resistant Gram-negative Enterobacteriaceae (CRE) threaten global health. Little is known, however, about the distribution of antimicrobial resistance genes in MDR isolated from patients in Vietnamese hospitals. In this study, we collected MDR Escherichia coli, defined as E. coli resistance against all fluoroquinolones, aminoglycosides, and carbapenems. Aim. This study was designed to clarify the molecular epidemiology of Escherichia coli isolates resistant to carbapenems, fluoroquinolones, and aminoglycosides isolated from patients admitted to one of the largest hospitals in Vietnam in 2014–2019 based on both whole-genome sequencing (WGS) and phenotypic data. Methodology. Sixty-seven Vietnamese isolates screened by drug resistance by the disk test were subjected to WGS, and their sequences were analyzed to determine their multilocus sequence type (MLST), O-types, H-types, distribution of drug resistance genes, plasmid types, pathogenicity islands (PIs), virulence factor distribution, and phylogenetic evolution using the WGS data. Results. Among the STs detected, ST410 was relatively dominant. Dominant O-types and H-types were O102 and H9 and showed some links, such as those between O102 and H8. The most dominant plasmid type and carbapenemase type were 4 and NDM-5, respectively. MLST, O-types, H-types, plasmid types, and types of carbapenemases were very heterogeneous among the isolates, with no clear correlation between them. Dominant plasmid type carrying drug resistance gene was IncQ1_1. The percentage of isolates positive for drug resistance genes, such as anti-beta-lactams and aminoglycosides, was relatively high because the isolates screened were resistant to carbapenems, fluoroquinolones, and aminoglycosides. Conclusions. MDR E. coli isolates isolated at a high-volume Vietnamese hospital were very heterogeneous, suggesting that they were acquired from different sources, including nosocomial infection, animals, and water. Eradication of MDR E. coli from hospitals and other clinical environments is very challenging because a single measure may be ineffective.
导言。包括耐碳青霉烯类革兰氏阴性肠杆菌科细菌(CRE)在内的耐多药(MDR)革兰氏阴性杆菌威胁着全球健康。然而,人们对从越南医院患者体内分离出的 MDR 中抗菌药耐药基因的分布情况知之甚少。在本研究中,我们收集了对所有氟喹诺酮类、氨基糖苷类和碳青霉烯类耐药的 MDR 大肠杆菌。研究目的本研究旨在根据全基因组测序(WGS)和表型数据,阐明 2014-2019 年从越南最大的医院之一收治的患者中分离出的对碳青霉烯类、氟喹诺酮类和氨基糖苷类药物耐药的大肠埃希菌的分子流行病学。研究方法。对通过盘式试验筛选出的67株越南分离株进行耐药性分析,并利用WGS数据分析其序列,以确定其多焦点序列类型(MLST)、O型、H型、耐药基因分布、质粒类型、致病性岛(PIs)、毒力因子分布和系统进化。结果发现在检测到的ST中,ST410相对占优势。优势 O 型和 H 型分别为 O102 和 H9,并显示出一些联系,如 O102 和 H8 之间的联系。最主要的质粒类型和碳青霉烯酶类型分别为 4 型和 NDM-5 型。在分离株中,MLST、O 型、H 型、质粒类型和碳青霉烯酶类型的差异很大,它们之间没有明显的相关性。携带耐药基因的主要质粒类型为 IncQ1_1。由于筛选出的分离物对碳青霉烯类、氟喹诺酮类和氨基糖苷类药物耐药,因此抗β-内酰胺类和氨基糖苷类等耐药基因阳性的分离物比例相对较高。结论在越南一家人流量较大的医院分离出的耐药大肠杆菌具有很强的异质性,这表明它们来自不同的来源,包括院内感染、动物和水。从医院和其他临床环境中根除 MDR 大肠杆菌非常具有挑战性,因为单一措施可能无效。
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引用次数: 0
The Cell Envelope Integrity Protein Homologue D0Y85_RS06240 of Stenotrophomonas Confers Multiantibiotic Resistance 细胞包膜完整性蛋白同源物 D0Y85_RS06240 对多种抗生素具有抗性
Pub Date : 2024-01-20 DOI: 10.1155/2024/7547514
Chuanqing Zhong, Xiaoqiang Deng, Aihua Jiang, Yayu Liu, Yuanyuan Liu, Jiafang Fu, Guangxiang Cao
Background. The potential role of cell envelope integrity proteins in mediating antibiotic resistance is not well understood. In this study, we investigated whether the cell envelope integrity protein D0Y85_RS06240 from the multiantibiotic resistant strain Stenotrophomonas sp. G4 mediates antibiotic resistance. Methods. Bioinformatics analysis was conducted to identify proteins related to the D0Y85_RS06240 protein. The D0Y85_RS06240 gene was heterologously expressed in Escherichia coli, both antibiotic MICs and the effect of efflux pump inhibitors on antibiotic MICs were determined by the broth microdilution method. A combination of antibiotic and efflux pump inhibitor was used to investigate bacterial killing kinetics, and binding of D0Y85_RS06240 to antibiotic molecules was predicted by molecular docking analysis. Results. Sequence homology analysis revealed that D0Y85_RS06240 was related to cell envelope integrity proteins. The D0Y85_RS06240 heterologous expression strains were resistant to multiple antibiotics, including colistin, tetracycline, and cefixime. However, the efflux pump inhibitor N-methylpyrrolidone (NMP) reduced the antibiotic MICs of the D0Y85_RS06240 heterologous expression strain, and bacterial killing kinetics revealed that NMP enhanced the bactericidal rate of tetracycline to the drug-resistant bacteria. Molecular docking analysis indicated that D0Y85_RS06240 could bind colistin, tetracycline, and cefixime. Conclusion. The cell envelope integrity protein D0Y85_RS06240 in Stenotrophomonas sp. G4 mediates multiantibiotic resistance. This study lays the foundation for an in-depth analysis of D0Y85_RS06240-mediated antibiotic resistance mechanisms and the use of D0Y85_RS06240 as a target for the treatment of multiantibiotic-resistant bacterial infections.
背景。细胞包膜完整性蛋白在介导抗生素耐药性方面的潜在作用尚不十分清楚。本研究调查了耐多种抗生素菌株 Stenotrophomonas sp. G4 的细胞包膜完整性蛋白 D0Y85_RS06240 是否介导抗生素耐药性。研究方法进行生物信息学分析以确定与 D0Y85_RS06240 蛋白相关的蛋白质。在大肠杆菌中异源表达 D0Y85_RS06240 基因,用肉汤微稀释法测定抗生素的 MIC 值和外排泵抑制剂对抗生素 MIC 值的影响。利用抗生素和外排泵抑制剂的组合研究了细菌杀灭动力学,并通过分子对接分析预测了 D0Y85_RS06240 与抗生素分子的结合。结果。序列同源性分析表明,D0Y85_RS06240与细胞包膜完整性蛋白有关。D0Y85_RS06240 异源表达菌株对多种抗生素具有耐药性,包括可乐定、四环素和头孢克肟。然而,外排泵抑制剂 N-甲基吡咯烷酮(NMP)降低了 D0Y85_RS06240 异源表达菌株的抗生素 MIC,细菌杀灭动力学显示,NMP 提高了四环素对耐药菌的杀菌率。分子对接分析表明,D0Y85_RS06240 能与可乐定、四环素和头孢克肟结合。结论G4 中的细胞包膜完整性蛋白 D0Y85_RS06240 介导了多种抗生素耐药性。这项研究为深入分析 D0Y85_RS06240 介导的抗生素耐药机制以及将 D0Y85_RS06240 用作治疗耐多种抗生素细菌感染的靶标奠定了基础。
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Canadian Journal of Infectious Diseases and Medical Microbiology
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