CDC, Centers for Disease Control and Prevention

CDC,疾病控制和预防中心
  • 文章类型: Journal Article
    对人类福祉和公共卫生的最大威胁之一是抗生素耐药性。如果允许不受控制地传播,它可能成为主要的健康风险,并引发另一场大流行。这证明有必要开发与抗生素耐药性相关的全球健康解决方案,并考虑到来自全球各地的微观数据。建立积极的社会规范,指导支持全球人类健康的个人和群体行为习惯,最终提高公众对采取此类行动的必要性的认识都可能产生积极影响。抗生素耐药性不仅是一个日益增长的临床问题,而且使治疗复杂化。使遵守当前指南管理抗生素耐药性极其困难。许多遗传成分与抗性的发展有关;其中一些成分在微生物之间具有复杂的转移路径。除此之外,随着支持抗生素耐药性发展的新机制被发现,抗生素耐药性在医学微生物学中变得越来越重要。除了遗传因素,误诊等行为,接触广谱抗生素,和延迟诊断有助于耐药性的发展。然而,生物信息学和DNA测序技术的进步彻底改变了诊断领域,能够实时识别抗生素耐药性的成分和原因。这些信息对于制定有效的控制和预防战略以应对威胁至关重要。
    One of the biggest threats to human well-being and public health is antibiotic resistance. If allowed to spread unchecked, it might become a major health risk and trigger another pandemic. This proves the need to develop antibiotic resistance-related global health solutions that take into consideration microdata from various global locations. Establishing positive social norms, guiding individual and group behavioral habits that support global human health, and ultimately raising public awareness of the need for such action could all have a positive impact. Antibiotic resistance is not just a growing clinical concern but also complicates therapy, making adherence to current guidelines for managing antibiotic resistance extremely difficult. Numerous genetic components have been connected to the development of resistance; some of these components have intricate paths of transfer between microorganisms. Beyond this, the subject of antibiotic resistance is becoming increasingly significant in medical microbiology as new mechanisms underpinning its development are identified. In addition to genetic factors, behaviors such as misdiagnosis, exposure to broad-spectrum antibiotics, and delayed diagnosis contribute to the development of resistance. However, advancements in bioinformatics and DNA sequencing technology have completely transformed the diagnostic sector, enabling real-time identification of the components and causes of antibiotic resistance. This information is crucial for developing effective control and prevention strategies to counter the threat.
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  • 文章类型: Journal Article
    COVID-19大流行暴露并加剧了围产期人群持续的健康不平等,导致母婴并发症的差异。在这篇叙述性评论中,我们提出了COVID-19大流行背景下围产期健康社会决定因素的适应概念框架,并利用该框架将有关COVID-19疫苗接种和感染差异的文献背景化.我们综合了结构环境的要素,个人社会经济地位,具体的中介决定因素相互影响,围产期COVID-19疫苗接种和感染,认为每个级别的系统不平等导致围产期健康结局的差异。从那里,我们发现文献中的空白,提出观察到的差异的机制,最后讨论了缓解这些问题的策略。
    The COVID-19 pandemic exposed and exacerbated persistent health inequities in perinatal populations, resulting in disparities of maternal and fetal complications. In this narrative review, we present an adapted conceptual framework of perinatal social determinants of health in the setting of the COVID-19 pandemic and use this framework to contextualize the literature regarding disparities in COVID-19 vaccination and infection. We synthesize how elements of the structural context, individual socioeconomic position, and concrete intermediary determinants influence each other and perinatal COVID-19 vaccination and infection, arguing that systemic inequities at each level contribute to observed disparities in perinatal health outcomes. From there, we identify gaps in the literature, propose mechanisms for observed disparities, and conclude with a discussion of strategies to mitigate them.
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  • 文章类型: Meta-Analysis
    长者营养不良的情况仍未被发现,治疗不足,资源不足,导致体重进一步下降,感染增加,和延迟从疾病中恢复,以及增加住院和住院时间。埃塞俄比亚的调查结果报告支离破碎,前后不一致。因此,本荟萃分析的主要目的是评估埃塞俄比亚老年人营养不足的汇总患病率及其与饮食多样性的关系.在线数据库(Medline,PubMed,Scopus,和科学直接),Google,谷歌学者,和其他灰色文献被用来搜索文章,直到出版之日。遵循系统评价和荟萃分析指南的首选报告项目。使用随机效应模型来估计合并的患病率;而使用Stata14.0版软件进行亚组分析和荟萃回归以确定可能的异质性来源。在522项研究中,14符合我们的标准并被纳入研究。共有7218名老年人(60岁以上)被纳入研究。埃塞俄比亚老年人营养不良的合并比例为20·6%(95%CI17·3,23·8)。饮食多样性得分低的老年人与老年人营养不良密切相关。因此,为老年人推广适当的干预策略以改善饮食多样性和营养状况至关重要.
    Undernutrition in elders remains under-detected, under-treated, and under-resourced and leads to further weight loss, increased infections, and delay in recovery from illness as well as increased hospital admissions and length of stay. The reports of the findings were fragmented and inconsistent in Ethiopia. Therefore, the main objective of this meta-analysis was to estimate the pooled prevalence of undernutrition and its association with dietary diversity among older persons in Ethiopia. Online databases (Medline, PubMed, Scopus, and Science Direct), Google, Google Scholar, and other grey literature were used to search articles until the date of publication. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guideline was followed. The random effect model was used to estimate the pooled prevalence; whereas subgroup analysis and meta-regression were performed to identify the probable source of heterogeneity using Stata version 14.0 software. Out of 522 studies accessed, 14 met our criteria and were included in the study. A total of 7218 older people (aged above 60 years old) were included in the study. The pooled proportion of undernutrition among older persons in Ethiopia was 20⋅6 % (95 % CI 17⋅3, 23⋅8). Elders who consumed low dietary diversity scores were strongly associated with undernutrition among older persons. Therefore, promoting appropriate intervention strategies for elders to improve dietary diversity practices and nutritional status is crucial.
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  • 文章类型: Journal Article
    未经评估:开发感染性疾病诊断和治疗方法的研究通常需要在研究期间观察感染的发作。然而,当感染基础发生率较低时,测量效果所需的队列规模变大,招聘变得昂贵和延长。在一项COVID-19检测研究中,我们开发了一个模型,通过将招募目标定位于高风险个体来减少招募时间和资源。
    UNASSIGNED:我们在美国各地的各个地点进行了观察性纵向队列研究,招募是在线健康和研究平台成员的成年人。通过与研究参与者的直接和纵向联系,我们应用机器学习技术从个人许可的社会经济和行为数据中计算个人风险评分,结合预测的当地患病率数据。然后,将建模的风险评分用于针对候选人进行一项假设的COVID-19检测研究。主要结果测量是根据风险模型与实际疫苗试验中的发病率进行比较的COVID-19的发病率。
    UNASSIGNED:当我们使用66,040名参与者的风险评分招募一组平衡的参与者进行COVID-19检测研究时,与类似的真实世界研究队列相比,我们获得了4~7倍的COVID-19感染率.
    UNASSIGNED:此风险模型提供了降低成本的可能性,提高分析的能力,并通过针对风险较高的招聘参与者来缩短研究时间。
    UNASSIGNED: Studies for developing diagnostics and treatments for infectious diseases usually require observing the onset of infection during the study period. However, when the infection base rate incidence is low, the cohort size required to measure an effect becomes large, and recruitment becomes costly and prolonged. We developed a model for reducing recruiting time and resources in a COVID-19 detection study by targeting recruitment to high-risk individuals.
    UNASSIGNED: We conducted an observational longitudinal cohort study at individual sites throughout the U.S., enrolling adults who were members of an online health and research platform. Through direct and longitudinal connection with research participants, we applied machine learning techniques to compute individual risk scores from individually permissioned data about socioeconomic and behavioral data, in combination with predicted local prevalence data. The modeled risk scores were then used to target candidates for enrollment in a hypothetical COVID-19 detection study. The main outcome measure was the incidence rate of COVID-19 according to the risk model compared with incidence rates in actual vaccine trials.
    UNASSIGNED: When we used risk scores from 66,040 participants to recruit a balanced cohort of participants for a COVID-19 detection study, we obtained a 4- to 7-fold greater COVID-19 infection incidence rate compared with similar real-world study cohorts.
    UNASSIGNED: This risk model offers the possibility of reducing costs, increasing the power of analyses, and shortening study periods by targeting for recruitment participants at higher risk.
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  • 文章类型: Journal Article
    UNASSIGNED:在2019年,美国有超过110万人患有人类免疫缺陷病毒(HIV),240万人患有丙型肝炎病毒(HCV)。七分之一(14%)不知道他们的HIV感染,几乎一半的HCV感染未被诊断。住房不稳定的人不成比例地受到艾滋病毒和HCV的影响。本研究将评估社区药剂师的干预措施,这些干预措施可能会减少HIV和HCV的传播并促进与护理的联系。
    UNASSIGNED:这项研究是在斯波坎的一家独立社区药房进行的,华盛顿。符合条件的研究参与者是药房的步入式患者,18岁以上,经历无家可归。如果药房患者有HIV或HCV诊断史,则将其排除在外。在过去6个月内接受了HIV或HCV筛查,或无法给予知情同意.干预措施包括使用血液样本进行HIV和HCV即时检测(POCT),风险确定面试,全面的HIV和HCV教育,以及个性化的测试后和风险缓解咨询,然后转诊到合作的健康诊所。
    UNASSIGNED:最终数据分析包括50名参与者。22名参与者(44%)有反应性HCVPOCT,和一个参与者有一个反应性HIVPOCT。在94%报告使用非法药物的参与者中,74%的人报告使用注射药物。百分之七十六(n=38)符合PrEP。对28名参与者进行了药剂师转诊,其中71%被确认为已建立的护理。
    未经评估:由于危险的性行为和物质滥用,无家可归的人感染艾滋病毒和HCV的风险增加。PrEP在美国未得到充分利用,药剂师参与HIV和HCV连续护理可能对改善联系和保留难以治疗人群的护理产生重大影响。
    UNASSIGNED: In 2019, there were over 1.1 million people living with human immunodeficiency virus (HIV) and 2.4 million people living with hepatitis C virus (HCV) in the United States. One in seven (14%) are unaware of their HIV infection and almost half of all HCV infections are undiagnosed. People with unstable housing are disproportionately affected by HIV and HCV. The present study will evaluate interventions by community pharmacists that may reduce HIV and HCV transmission and promote linkage to care.
    UNASSIGNED: This study was conducted in an independent community pharmacy in Spokane, Washington. Eligible study participants were walk-in patients of the pharmacy, over the age of 18, and experiencing homelessness. Pharmacy patients were excluded if they had a history of HIV or HCV diagnosis, received a screening for HIV or HCV in the last six months or were unable to give informed consent. The intervention included administration of HIV and HCV point-of-care testing (POCT) using a blood sample, risk determination interview, comprehensive HIV and HCV education, and personalized post-test and risk mitigation counseling followed by referral to partnering health clinics.
    UNASSIGNED: Fifty participants were included in the final data analysis. Twenty-two participants (44%) had a reactive HCV POCT, and one participant had a reactive HIV POCT. Of the 94% of participants who reported illicit drug use, 74% reported injection drug use. Seventy-six percent (n = 38) qualified for PrEP. Pharmacist referrals were made for 28 participants and 71% were confirmed to have established care.
    UNASSIGNED: Individuals experiencing homelessness are at an increased risk for acquiring HIV and HCV due to risky sexual behaviors and substance misuse. PrEP is underutilized in the U.S. and pharmacist involvement in the HIV and HCV care continuum may have a significant impact in improving linkage and retention in care of difficult to treat populations.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    未经证实:麻疹,腮腺炎,风疹疫苗(MMR)通常用于儿童;然而,青少年和成人可能会因为各种原因接受MMR。青少年和成人的安全性研究有限。我们在疫苗安全数据链中报告了该年龄段MMR的安全性。
    UNASSIGNED:我们包括从2010年1月1日至2018年12月31日接受≥1剂MMR的青少年(9-17岁)和成年人(≥18岁)。通过诊断代码识别预先指定的结果。临床严重的结果包括过敏反应,脑炎/脊髓炎,格林-巴利综合征,免疫性血小板减少症,脑膜炎,和癫痫。非严重结果为过敏反应,关节病,发烧,注射部位反应,淋巴结病,非特异性反应,腮腺炎,皮疹,和晕厥。所有严重结果均接受病历审查。在预定义的疫苗接种后窗口中计算结果特异性发生率。使用自我控制的风险区间设计来确定接种后风险窗口中与更远的对照窗口相比的每个结果的相对风险。
    未经评估:在研究期间,向青少年和成人施用276,327MMR剂量。接种者的平均年龄为34.8岁;65.8%为女性;53.2%的剂量与≥1种其他疫苗同时施用。严重的结果是罕见的,每个评估结果的发生率≤6/100,000剂量,与控制窗口相比,风险窗口期间的发病率没有显著升高.每100,000剂量的非严重结局的发生率为腮腺炎的3.4至关节病的263.0。其他常见结果包括注射部位反应和皮疹(每100,000剂量157.0和112.9,分别)。除腮腺炎外,与所有非严重结局的控制窗口相比,在风险窗口期间观察到更多的结局。按性别和年龄组观察到一些变异性。
    未经评估:MMR后的严重结局在青少年和成人中很少见,但应该就预期的局部和系统性非严重不良事件向接种者提供咨询.
    UNASSIGNED: Measles, mumps, and rubella vaccine (MMR) is routinely administered to children; however, adolescents and adults may receive MMR for various reasons. Safety studies in adolescents and adults are limited. We report on safety of MMR in this age group in the Vaccine Safety Datalink.
    UNASSIGNED: We included adolescents (aged 9-17 years) and adults (aged ≥ 18 years) who received ≥ 1 dose of MMR from January 1, 2010-December 31, 2018. Pre-specified outcomes were identified by diagnosis codes. Clinically serious outcomes included anaphylaxis, encephalitis/myelitis, Guillain-Barré syndrome, immune thrombocytopenia, meningitis, and seizure. Non-serious outcomes were allergic reaction, arthropathy, fever, injection site reaction, lymphadenopathy, non-specific reaction, parotitis, rash, and syncope. All serious outcomes underwent medical record review. Outcome-specific incidence was calculated in pre-defined post-vaccination windows. A self-controlled risk interval design was used to determine the relative risk of each outcome in a risk window after vaccination compared to a more distal control window.
    UNASSIGNED: During the study period, 276,327 MMR doses were administered to adolescents and adults. Mean age of vaccinees was 34.8 years; 65.8 % were female; 53.2 % of doses were administered simultaneously with ≥ 1 other vaccine. Serious outcomes were rare, with incidence ≤ 6 per 100,000 doses for each outcome assessed, and none had a significant elevation in incidence during the risk window compared to the control window. Incidence of non-serious outcomes per 100,000 doses ranged from 3.4 for parotitis to 263.0 for arthropathy. Other common outcomes included injection site reaction and rash (157.0 and 112.9 per 100,000 doses, respectively). Significantly more outcomes were observed during the risk window compared to the control window for all non-serious outcomes except parotitis. Some variability was observed by sex and age group.
    UNASSIGNED: Serious outcomes after MMR are rare in adolescents and adults, but vaccinees should be counseled regarding anticipated local and systemic non-serious adverse events.
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  • 文章类型: Journal Article
    临床试验中的治疗和疫苗疗效通常在媒体和医学期刊上报道为相对风险降低。本文解释了为什么相对风险降低是一种误报措施,在临床研究研究如COVID-19疫苗的随机对照试验中报告疗效时,会助长虚假信息。相对风险降低是基于相对风险,流行病学研究中用于估计与暴露相关的疾病发生概率的比例度量或比率。本文演示了相对风险降低和相对风险如何掩盖临床研究中疾病风险降低的幅度。在临床研究中,绝对风险降低被证明是治疗和疫苗功效的更精确和可靠的衡量标准。绝对风险降低倒数还可以衡量治疗或接种疫苗所需的数量,对于比较临床研究的风险降低,是比相对风险降低更准确的衡量标准。此外,本文回顾了通过媒体报道传播的COVID-19疫苗疗效错误信息的后果.文章得出的结论是,在临床试验中,相对风险降低不应用于衡量治疗和疫苗疗效。
    未经评估:•临床试验中相对测量的不可靠性以图形方式说明,随着绝对度量的变化,展示恒定的相对度量。•在临床研究中滥用相关措施在历史上与对JeromeCornfield关于测量因果和关联效应的建议的误解有关。•描述了与COVID-19疫苗功效和现代临床医学相关的虚假信息和错误信息的后果。•解释了在荟萃分析中绝对测量的正确使用。
    Treatment and vaccine efficacy in clinical trials are often reported in the media and medical journals as the relative risk reduction. The present article explains why the relative risk reduction is a misinformative measure that promotes disinformation when reporting efficacy in clinical research studies such as randomized controlled trials for COVID-19 vaccines. The relative risk reduction is based on the relative risk, a proportional measure or ratio used in epidemiologic studies to estimate the probability of a disease associated with an exposure. The present article demonstrates how the relative risk reduction and relative risk obscure the magnitude of disease risk reduction in clinical research. The absolute risk reduction is shown to be a more precise and reliable measure of treatment and vaccine efficacy in clinical research studies. The absolute risk reduction reciprocal also measures the number needed to treat or vaccinate, and is a more accurate measure than the relative risk reduction for comparing risk reductions of clinical studies. Additionally, the present article reviews consequences of COVID-19 vaccine efficacy misinformation disseminated through media reports. The article concludes that relative risk reduction should not be used to measure treatment and vaccine efficacy in clinical trials.
    UNASSIGNED: •Unreliability of relative measures in clinical trials is graphically illustrated, demonstrating constant relative measures as absolute measures change.•Misuse of relative measures in clinical research is historically linked to misinterpretation of Jerome Cornfield\'s advice on measuring causative and associative effects.•Consequences of disinformation and misinformation related to COVID-19 vaccine efficacy and modern clinical medicine are described.•The proper use of absolute measures in meta-analyses is explained.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    过量饮酒会导致大量医疗,经济,和社会负担。全球约有5.3%的死亡可归因于饮酒。此外,酒精相关性肝病(ALD)的负担占全球所有疾病和损伤的5.1%.酒精使用障碍(AUD)在全球范围内影响男性比女性更大,中等和发达国家。关于酒精相关脂肪变性全球估计的精确数据,酒精相关性肝炎,和酒精相关的肝硬化一直是具有挑战性的获得。在美国(US),根据NHANES数据,酒精相关的脂肪变性估计为4.3%,该数据在14年中保持稳定。然而,与酒精相关的纤维化肝病在同一时期有所增加。在那些有AUD的人中,酒精相关肝炎的患病率估计为10-35%。全球范围内,对于代偿期肝硬化,酒精相关性肝硬化的患病率估计为2,360万人,失代偿期肝硬化的患病率为246万人.ALD对肝脏相关死亡的全球死亡率和疾病负担的贡献是巨大的。2016年,与AUD相关的肝病占15岁及以上年龄组估计肝病死亡人数的50%。来自美国的数据报告了与酒精相关的肝脏并发症相关的高成本负担。最后,最近的COVID-19大流行与全球酒精消费显著增加有关,并可能增加ALD的负担。
    Consumption of alcohol in excess leads to substantial medical, economic, and societal burdens. Approximately 5.3% of all global deaths may be attributed to alcohol consumption. Moreover, the burden of alcohol associated liver disease (ALD) accounts for 5.1% of all disease and injury worldwide. Alcohol use disorder (AUD) affects men more than women globally with significant years of life loss to disability in low, middle and well-developed countries. Precise data on global estimates of alcohol related steatosis, alcohol related hepatitis, and alcohol related cirrhosis have been challenging to obtain. In the United States (US), alcohol related steatosis has been estimated at 4.3% based on NHANES data which has remained stable over 14 years. However, alcohol-related fibrotic liver disease has increased over the same period. In those with AUD, the prevalence of alcohol related hepatitis has been estimated at 10-35%. Globally, the prevalence of alcohol-associated cirrhosis has been estimated at 23.6 million individuals for compensated cirrhosis and 2.46 million for those with decompensated cirrhosis. The contribution of ALD to global mortality and disease burden of liver related deaths is substantial. In 2016 liver disease related to AUD contributed to 50% of the estimated liver disease deaths for age groups 15 years and above. Data from the US report high cost burdens associated with those admitted with alcohol-related liver complications. Finally, the recent COVID-19 pandemic has been associated with marked increase in alcohol consumption worldwide and will likely increase the burden of ALD.
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