antigenic transformation

简明释义

抗原型变换

英英释义

例句

1.Scientists are studying the mechanisms of antigenic transformation in order to develop better treatments.

科学家们正在研究抗原转变的机制，以开发更好的治疗方法。

2.Vaccination strategies must adapt to the antigenic transformation observed in circulating viruses.

疫苗接种策略必须适应在流行病毒中观察到的抗原转变。

3.The virus underwent a significant antigenic transformation, making previous vaccines less effective.

该病毒经历了显著的抗原转变，使得之前的疫苗效果降低。

4.The rapid antigenic transformation of the pathogen poses a challenge for public health officials.

病原体的快速抗原转变给公共卫生官员带来了挑战。

5.Research shows that antigenic transformation can lead to new strains of influenza.

研究表明，抗原转变会导致新的流感毒株出现。

作文

Antigenic transformation is a critical concept in immunology that refers to the changes in the antigenic properties of a pathogen, such as a virus or bacterium, which can affect how the immune system recognizes and responds to it. This phenomenon is particularly important for understanding how certain diseases can evade the immune response over time. For instance, influenza viruses are notorious for their ability to undergo antigenic transformation, leading to seasonal outbreaks and the need for annual vaccinations. The term itself combines 'antigenic,' relating to substances that induce an immune response, and 'transformation,' which signifies a change or alteration. In the context of infectious diseases, antigenic transformation (抗原转变) can occur through various mechanisms, including genetic mutations or reassortment of viral genes. These changes can result in new strains of a pathogen that are not recognized by the immune system, thus allowing them to infect individuals who may have previously been immune. This is why some viruses, like the flu virus, require constant monitoring and updates to vaccines. The implications of antigenic transformation (抗原转变) extend beyond just the flu. Other viruses, such as HIV, also exhibit this capability, making it difficult to develop long-lasting treatments or vaccines. In the case of HIV, the virus's rapid mutation rate allows it to escape the immune system's detection, leading to chronic infection and disease progression. Understanding the mechanisms behind antigenic transformation (抗原转变) is essential for researchers and healthcare professionals as they work towards developing effective strategies for prevention and treatment. Moreover, antigenic transformation (抗原转变) is not limited to viral pathogens. Bacteria can also undergo changes in their surface antigens, which can affect vaccine efficacy. For example, Streptococcus pneumoniae has numerous serotypes, and its ability to change its antigenic profile can lead to vaccine failure in certain populations. This highlights the importance of continuous research and surveillance in understanding how these organisms evolve and adapt. In conclusion, antigenic transformation (抗原转变) plays a significant role in the dynamics of infectious diseases. It presents challenges for public health, requiring ongoing research and adaptation of vaccination strategies. As pathogens evolve, so too must our approaches to combating them. By staying informed about antigenic transformation (抗原转变), we can better prepare for future outbreaks and protect public health more effectively.

抗原转变是免疫学中的一个关键概念，指的是病原体（如病毒或细菌）的抗原特性发生变化，这可能会影响免疫系统如何识别和应对它。这一现象对于理解某些疾病如何随着时间的推移逃避免疫反应尤为重要。例如，流感病毒因其能够进行抗原转变而臭名昭著，导致季节性爆发并需要每年接种疫苗。这个术语本身结合了“抗原性”（与诱导免疫反应的物质有关）和“转变”（表示变化或改变）。在传染病的背景下，抗原转变（抗原转变）可以通过各种机制发生，包括基因突变或病毒基因的重组。这些变化可能导致新的病原体株，免疫系统无法识别，从而使得曾经免疫的人也可能被感染。这就是为什么一些病毒，如流感病毒，需要不断监测和更新疫苗。抗原转变（抗原转变）的影响不仅限于流感。其他病毒，如HIV，也表现出这种能力，使得开发持久的治疗或疫苗变得困难。在HIV的情况下，病毒的快速突变率使其能够逃避免疫系统的检测，导致慢性感染和疾病进展。理解抗原转变（抗原转变）背后的机制对于研究人员和医疗专业人员至关重要，因为他们努力开发有效的预防和治疗策略。此外，抗原转变（抗原转变）不仅限于病毒病原体。细菌也可以在其表面抗原上发生变化，这可能影响疫苗的有效性。例如，肺炎链球菌有许多血清型，其抗原特征的变化可能导致某些人群的疫苗失败。这突显了在理解这些生物体如何进化和适应方面持续研究和监测的重要性。总之，抗原转变（抗原转变）在传染病动态中起着重要作用。它给公共卫生带来了挑战，需要持续的研究和疫苗策略的调整。随着病原体的进化，我们的抗击方法也必须随之改变。通过了解抗原转变（抗原转变），我们可以更好地为未来的疫情做好准备，更有效地保护公共卫生。