Poxvirus

痘病毒
  • 文章类型: Journal Article
    猴痘在刚果和尼日利亚流行至少五十年。自2022年5月初以来,世界各地发生了许多前所未有的疫情,此前没有任何病例报告。虽然大多数确诊病例在欧洲和美洲,一些病例发生在非地方性非洲国家。截至2022年12月,全球已报告82,999例引起世界卫生组织(世卫组织)成员的关注。虽然世卫组织尚未将这一流行病列为全球卫生紧急情况,成员国已经开始提出计划,以巩固其紧急疫苗库存,并分享由单一FDA批准的制造商生产的有限数量的疫苗,巴伐利亚北欧。许多国家担心疫苗将如何共享。一些较大的捐助国被定位为疫苗共享的最大受益者,虽然自1970年代以来一直感染该病毒的地区的国家没有得到任何分配。这种疫苗分布模式与COVID-19大流行早期的情况相呼应。由于猴痘和天花的相似性,接触预防措施和疫苗接种似乎是防止其迅速传播的有效策略。我们的目标是评估类似于天花的根除程序模型如何应用于Monkeypox,以及它是否可以解决疫苗不平等问题。要做到这一点,我们使用多管齐下的方法来针对疾病监测,疫苗意识,制造,成本,和分销策略。
    Monkeypox has been endemic in Congo and Nigeria for at least five decades. Since early May 2022, there have been numerous unprecedented outbreaks throughout the world in places without any previously reported cases. While a majority of the diagnosed cases have been within Europe and the Americas, several cases have occurred in non-endemic African countries. As of December 2022, 82,999 cases had been reported globally, prompting concern among the World Health Organization (WHO) members. While the WHO has not labeled this epidemic a Global Health Emergency, member states have begun to put forward plans to consolidate their emergency vaccine stockpiles and share the limited number of vaccines made by the single FDA-approved manufacturer, Bavarian Nordic. Many countries are concerned about how vaccines will be shared. Some of the larger donor States are positioned to be the biggest beneficiaries of vaccine sharing, while States from areas that have been suffering from the virus since the 1970s have not been allocated any. This pattern of vaccine distribution echoes that seen during the early part of the COVID-19 pandemic. Due to the similarities between Monkeypox and Smallpox, contact precautions and vaccination seem to be effective strategies to combat its rapid spread. We aim to evaluate how an eradication program model similar to that used for Smallpox can be applied to Monkeypox, and whether it can address vaccine inequity. To do this, we use a multi-pronged approach targeting disease surveillance, vaccine awareness, manufacturing, cost, and distribution strategies.
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  • 文章类型: Journal Article
    2022年,多个国家的一系列人类猴痘病例导致了已知流行地区以外的最大和最广泛的爆发。建立适当的基因组监测对于控制此类暴发至关重要。为此,我们进行了纳米孔(PromethionP24)和Illumina(NextSeq。2000)猴痘样品的全基因组测序(WGS)。自适应采样用于人类宿主基因组的计算机消耗,允许在没有样品组成的先验知识的情况下富集低丰度病毒DNA。纳米孔测序允许高病毒基因组覆盖率,在测序过程中跟踪样品组成,应变测定,和突变模式的初步评估。除此之外,只有纳米孔数据允许我们解析整个猴痘病毒基因组,关于属于基因OPG015和OPG208的两个结构变体。重要宿主范围基因中的这些SV在整个爆发期间似乎是稳定的,并且由于短读段测序或短读段首次组装的普遍性而经常错误组装和/或错误注释。理想情况下,独立标准Illumina测序不应用于MonkeypoxWGS和从头组装,因为它会混淆基因组的结构,这会影响公共数据库中保存的基因组的质量和完整性,从而可能会影响评估当前大流行中猴痘宿主范围变化的完整遗传原因的能力。
    In 2022, a series of human monkeypox cases in multiple countries led to the largest and most widespread outbreak outside the known endemic areas. Setup of proper genomic surveillance is of utmost importance to control such outbreaks. To this end, we performed Nanopore (PromethION P24) and Illumina (NextSeq. 2000) Whole Genome Sequencing (WGS) of a monkeypox sample. Adaptive sampling was applied for in silico depletion of the human host genome, allowing for the enrichment of low abundance viral DNA without a priori knowledge of sample composition. Nanopore sequencing allowed for high viral genome coverage, tracking of sample composition during sequencing, strain determination, and preliminary assessment of mutational pattern. In addition to that, only Nanopore data allowed us to resolve the entire monkeypox virus genome, with respect to two structural variants belonging to the genes OPG015 and OPG208. These SVs in important host range genes seem stable throughout the outbreak and are frequently misassembled and/or misannotated due to the prevalence of short read sequencing or short read first assembly. Ideally, standalone standard Illumina sequencing should not be used for Monkeypox WGS and de novo assembly, since it will obfuscate the structure of the genome, which has an impact on the quality and completeness of the genomes deposited in public databases and thus possibly on the ability to evaluate the complete genetic reason for the host range change of monkeypox in the current pandemic.
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  • 文章类型: Journal Article
    背景:MPOX(猴痘)病毒感染,一种以前局限于非洲次大陆的人畜共患疾病,最近,由于城市社区中一种新的“化身”的复兴,引起了全世界的关注。美国皮肤科医生开始看到发烧和自限性脓疱坏死性皮疹的患者,所有其他感染性调查均为阴性。
    方法:我们对人口统计学进行了一项前瞻性观察性多中心临床研究,皮肤表现,坏死性脓疱性病变和/或发热患者的结局。
    结果:35例PCR证实MPOX病例,主要是外籍人士,进行了随访,发现在疾病发作前1周平均有高风险的异性恋接触。我们发现,在所有情况下,它们都有特征性的环状脓疱性病变,伴有坏死中心或“烟雾环脓疱”。下腹部的病变压痛和好发,耻骨区,并观察到生殖器。大多数病例是系统稳定的,发热平均持续4天,CRP水平升高。生殖器病变容易继发细菌感染。疾病很严重,我们的一名患者发现有较大的环形斑块,患有艾滋病毒。
    结论:健康个体的总体预后良好,平均2周内病灶愈合,无疤痕。“新世界MPOX”应从人畜共患病分类为能够在城市人口中传播的性传播感染(STI)。我们的发现有助于初级和二级保健医生早期临床怀疑和与其他STI的区别。
    BACKGROUND: MPOX (Monkeypox) viral infection, a zoonotic disease previously confined to the African sub-continent, has caught attention worldwide recently due to its resurgence in a new \'avatar\' among urban communities. Dermatologists in the U. A. E. started to see patients with fever and a self-limiting pustular necrotic rash that was negative for all other infectious investigations.
    METHODS: We performed a prospective observational multicenter clinical study of the demographics, skin manifestations, and outcomes of patients presenting with necrotic pustular lesions and/or fever.
    RESULTS: 35 cases of PCR confirmed MPOX cases, mostly in the expatriate population, were followed up and found to have high-risk heterosexual contact on an average of 1 week prior to disease onset. We found that they have characteristic annular pustular lesions with necrotic center or \"Smoke ring pustules\' in all cases. Lesion tenderness and predilection for the lower abdomen, pubic area, and genitalia were observed. Most cases were systemically stable, with fever lasting for an average of 4 days and elevated CRP levels. Genital lesions were prone to secondary bacterial infections. The disease was severe, with larger annular plaques in one of our patients found to be living with HIV.
    CONCLUSIONS: The overall prognosis in healthy individuals is good, with lesions healing within an average of 2 weeks without scarring. \'New world MPOX\' should be unclassified from zoonosis to a sexually transmitted infection (STI) capable of transmission in an urban population. Our findings can help in early clinical suspicion and differentiation from other STI\'s for primary and secondary health care physicians.
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  • 文章类型: Journal Article
    2022年全球水痘爆发迅速在猴痘病毒(MPXV)种群中引入了不可预见的多样性,导致许多分支IIb亚谱系。新MPXV突变的这种繁殖保证了对先前推荐或验证的旨在靶向MPXV基因组的引物的彻底重新研究。在这项研究中,我们探索了18个PCR引物集,并检查了它们对5210MPXV基因组的结合特异性,代表所有已建立的MPXV谱系。我们的结果表明,只有五个引物组导致几乎所有的完美匹配针对靶向MPXV谱系,并且其余的引物组全部包含针对几乎所有MPXV谱系的1-2个错配。我们进一步研究了错配的引物-基因组对,发现一些引物与MPXV基因组的测序和组装不良的区域重叠。在多个谱系中是一致的。然而,我们在所有5210个MPXV基因组中确定了173个99%的全基因组保守区,代表30个谱系/进化枝,至少有80%的谱系特异性共识,用于未来的引物开发和引物结合评估。这项工作对于确保当前的检测方案是强大的,并作为其他传染病临床测试开发中引物评估的框架至关重要。
    The 2022 global Mpox outbreak swiftly introduced unforeseen diversity in the monkeypox virus (MPXV) population, resulting in numerous Clade IIb sublineages. This propagation of new MPXV mutations warrants the thorough re-investigation of previously recommended or validated primers designed to target MPXV genomes. In this study, we explored 18 PCR primer sets and examined their binding specificity against 5210 MPXV genomes, representing all the established MPXV lineages. Our results indicated that only five primer sets resulted in almost all perfect matches against the targeted MPXV lineages, and the remaining primer sets all contained 1-2 mismatches against almost all the MPXV lineages. We further investigated the mismatched primer-genome pairs and discovered that some of the primers overlapped with poorly sequenced and assembled regions of the MPXV genomes, which are consistent across multiple lineages. However, we identified 173 99% genome-wide conserved regions across all 5210 MPXV genomes, representing 30 lineages/clades with at least 80% lineage-specific consensus for future primer development and primer binding evaluation. This exercise is crucial to ensure that the current detection schemes are robust and serve as a framework for primer evaluation in clinical testing development for other infectious diseases.
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  • 文章类型: Case Reports
    传染性软疣(MC)是一种常见的良性皮肤病毒感染。它可以影响皮肤的任何部分,对面部皮肤有很高的倾向,特别是在人类免疫缺陷病毒(HIV)患者的低CD4计数。我们报告了一例16岁的女性患者,该患者患有巨大的孤立的右上眼睑MC病变,这是她的HIV感染和获得性免疫缺陷综合症(AIDS)的第一个临床指标。根据病史对MC进行最终诊断,临床发现,和组织病理学检查。此外,由于它的重要位置,大尺寸,和非典型的介绍,在局部麻醉下通过简单的去顶和刮宫进行手术切除以加速恢复,预防角膜并发症,减少传输。她的随访显示出令人满意的临床和美容结果。表现为巨大的非典型眼睑病变的患者必须彻底调查免疫抑制状态,尤其是HIV感染。MC在HIV患者中可以有非典型表现。据我们所知,这是文献中报道巨大的孤立性眼睑MC病变导致诊断为HIV感染和AIDS的少数病例之一。
    Molluscum contagiosum (MC) is a common benign cutaneous viral infection. It can affect any part of the skin with a high propensity for facial skin, especially in human immunodeficiency virus (HIV) patients with low CD4 count. We report a case of a 16-year-old female patient who presented with a giant isolated right upper eyelid MC lesion that served as the first clinical indicator of her HIV infection and acquired immunodeficiency syndrome (AIDS). A final diagnosis of MC was made based on the history, clinical findings, and histopathological examination. Moreover, due to its vital location, large size, and atypical presentation, a surgical excision by simple unroofing and curettage was performed under local anesthesia to speed recovery, prevent corneal complications, and reduce transmission. Her follow-up visits showed satisfactory clinical and cosmetic outcomes. Patients presenting with giant atypical eyelid lesions must be thoroughly investigated for immunosuppressive states, especially HIV infection. MC can have atypical presentations in HIV patients. To our knowledge, this is one of a few cases in the literature reporting a giant isolated eyelid MC lesion leading to a diagnosis of HIV infection with AIDS.
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  • 文章类型: Case Reports
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  • 文章类型: Case Reports
    Orf是由副痘病毒引起的。我们提出了一个经常性的,一名有毛细胞白血病病史的女性患者的巨大数字orf病例。尽管刮胡子切除了,手指截肢后病变进展并复发。用局部咪喹莫特乳膏和全身皮下干扰素α-2a治疗是成功的。
    Orf is caused by a parapoxvirus. We present a recurrent, giant digital orf case in a female patient with a history of hairy cell leukemia. In spite of shave excision, the lesion progressed and recurred after digital amputation. Treatment with topical imiquimod cream and systemic subcutaneous interferon alfa-2a was successful.
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  • 文章类型: Case Reports
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