virulence

简明释义

英[ˈvɪrələns]美[ˈvɪrələnsˌˈvɪrjələns]

n. 毒力；毒性；恶意（等于 virulency）

英英释义

单词用法

同义词

反义词

例句

1.The variation of virulence and RACES of Xoo population were compared systemically.

通过试验系统比较了不同时期病菌的毒性和小种组成变化。

2.The results showed that the JDS - CPV has higher virulence to pine caterpillar.

证实JDS-CPV对我国马尾松毛虫有较好的毒力。

3.How is virulence measured?

如何衡量毒性？

4.There are two crucial factors: the transmissibility of the virus, and its virulence.

有两个关键因素：病毒的传播性和其毒性。

5.The compilation of information concerning pathogens, virulence factors and antigenic epitopes has resulted in many useful databases.

有关病原体、毒力因子和抗原表位的信息的编纂产生了很多有用的数据库。

6.Without that information, it is also impossible to determine the new disease’s virulence, fatality rates and so on.

而且如果没有这些诊断信息，也根本不可能决定这种新型病毒的毒性及致死率等。

7.Objective:To construct mouse peritonitis models of Enterococcus for the study of the putative virulence factor of Enterococcus.

目的：建立肠球菌毒力相关性小鼠腹膜炎模型，用于肠球菌类毒力因子的研究。

8.The scientist studied the virulence of the new strain of bacteria to understand its impact on public health.

科学家研究了这种新菌株的毒力以了解其对公共健康的影响。

9.Researchers are investigating how environmental factors contribute to the virulence of certain pathogens.

研究人员正在调查环境因素如何影响某些病原体的毒力。

10.Vaccines are designed to reduce the virulence of infectious diseases by training the immune system.

疫苗旨在通过训练免疫系统来降低传染病的毒力。

11.Increased virulence in viruses can lead to more severe outbreaks and higher mortality rates.

病毒的毒力增强可能导致更严重的疫情和更高的死亡率。

12.The virulence of the pathogen was measured using animal models in the laboratory.

该病原体的毒力是在实验室中使用动物模型进行测量的。

作文

In recent years, the term virulence has gained significant attention in both scientific and public discourse, particularly in the context of infectious diseases. Understanding virulence is crucial for grasping how pathogens affect human health and how we can combat them effectively. Virulence refers to the degree of pathogenicity or the ability of a microorganism to cause disease. It encompasses various factors, including the organism's ability to invade host tissues, evade the immune system, and produce toxins. One of the most striking examples of virulence can be seen in the case of the Ebola virus. This virus is notorious for its high virulence, leading to severe hemorrhagic fever with a high fatality rate. The mechanisms behind its virulence include its ability to replicate rapidly within the host and its capacity to disrupt the immune response. Consequently, understanding the virulence of the Ebola virus has been critical in developing vaccines and treatments aimed at mitigating its impact on affected populations.On the other hand, not all pathogens exhibit the same level of virulence. For instance, some strains of the bacteria Streptococcus pneumoniae are less virulent and may only cause mild infections in healthy individuals. However, in immunocompromised patients, these same strains can lead to severe illnesses such as pneumonia or meningitis. This variability in virulence underscores the importance of considering host factors when studying infectious diseases.The concept of virulence also plays a pivotal role in epidemiology. Public health officials often monitor outbreaks by assessing the virulence of pathogens involved. The more virulent a pathogen, the more urgent the response required to control its spread. For example, during the COVID-19 pandemic, researchers closely examined the virulence of the SARS-CoV-2 virus, which led to the implementation of measures such as social distancing and vaccination campaigns.Moreover, the emergence of antibiotic-resistant bacteria has raised concerns about virulence in healthcare settings. Strains like Methicillin-resistant Staphylococcus aureus (MRSA) demonstrate increased virulence due to their resistance to commonly used antibiotics. This situation poses a significant challenge for clinicians, as treating infections caused by these resistant strains often requires more potent and potentially toxic medications.In conclusion, virulence is a fundamental concept in microbiology and public health that helps us understand the severity of infections caused by various pathogens. By studying virulence factors, researchers can develop better strategies for prevention, treatment, and control of infectious diseases. As we continue to face new and emerging pathogens, the importance of understanding virulence cannot be overstated. It is essential for safeguarding public health and ensuring that we are prepared to tackle future health crises effectively.

近年来，术语virulence在科学和公众话语中引起了显著关注，尤其是在传染病的背景下。理解virulence对于掌握病原体如何影响人类健康以及我们如何有效对抗它们至关重要。Virulence指的是微生物引起疾病的能力或致病性程度。它包括多种因素，包括生物体侵入宿主组织、逃避免疫系统和产生毒素的能力。最引人注目的例子之一是埃博拉病毒的案例。该病毒因其高virulence而臭名昭著，导致严重的出血热，致死率高。其virulence背后的机制包括其在宿主体内快速复制的能力，以及破坏免疫反应的能力。因此，理解埃博拉病毒的virulence对于开发旨在减轻其对受影响人群影响的疫苗和治疗至关重要。另一方面，并非所有病原体表现出相同程度的virulence。例如，某些链球菌菌株的致病性较低，可能仅在健康个体中引起轻微感染。然而，在免疫功能低下的患者中，这些相同的菌株可能导致严重疾病，如肺炎或脑膜炎。这种virulence的变异性突显了在研究传染病时考虑宿主因素的重要性。Virulence的概念在流行病学中也发挥着关键作用。公共卫生官员通常通过评估涉及的病原体的virulence来监测疫情。病原体的致病性越强，控制其传播所需的响应就越紧迫。例如，在COVID-19大流行期间，研究人员密切审查了SARS-CoV-2病毒的virulence，这导致实施社交距离和疫苗接种运动等措施。此外，抗生素耐药细菌的出现引发了对医疗环境中virulence的担忧。像耐甲氧西林金黄色葡萄球菌（MRSA）这样的菌株由于对常用抗生素的耐药性而显示出更高的virulence。这种情况给临床医生带来了重大挑战，因为治疗这些耐药菌株引起的感染通常需要更强效且潜在有毒的药物。总之，virulence是微生物学和公共卫生中的一个基本概念，帮助我们理解各种病原体引起的感染的严重性。通过研究virulence因素，研究人员可以制定更好的预防、治疗和控制传染病的策略。随着我们继续面对新的和新出现的病原体，理解virulence的重要性不容小觑。它对保护公共健康和确保我们能够有效应对未来的健康危机至关重要。