pathogenicity

简明释义

英[ˌpæθədʒeˈnɪsɪti]美[ˌpæθoʊdʒəˈnɪsɪti]

n. [病理] 致病性；[基医] 病原性

英英释义

单词用法

同义词

反义词

例句

1.There was no correlation between pathogenicity and colours of colony.

菌落颜色与致病性无明显相关。

2.This paper dealed with the development and pathogenicity of Histomonas meleagridis in the liver and kidney of naturally infected peacocks.

本文报道了火鸡组织滴虫在孔雀肝脏和肾脏中的发育及其致病作用。

3.Pathogenicity is the important factor that mycoplasma infection need treatment.

具有致病性，是支原体感染需要治疗的重要条件。

4.A set of strains with stable pathogenicity by screening from the strains tested were selected.

还从供试菌株中筛选出一套具有稳定致病力的鉴别菌株。

5.This paper reported symptoms of discolored rice grains, species and their pathogenicity on rice caused by the Curvularia.

本文报道了弯孢菌引起的变色米的症状，弯孢苗的种类及其对水稻的致病性。

6.The transformation system is the basis for study of pathogenicity mechanism and functional gene of the fungi.

该转化体系的建立为研究该菌的致病机制和功能基因分析奠定了基础。

7.Results indicated that the reaction of cotton varieties varies with the pathogenicity of different isolates.

结果是棉花品种对黄萎病菌的反应因菌株的致病力强弱而不同。

8.The virus was analyzed by the animal pathogenicity test, virus attenuation, protection of the attenuated virus and virulence return experiment.

对分离的痘病毒进行动物致病性试验、病毒分离传代和致弱试验、致弱毒保护力试验和返强试验。

9.Scientists are studying the pathogenicity of certain fungi that affect crops.

科学家们正在研究影响作物的某些真菌的致病性。

10.The pathogenicity of a pathogen can vary depending on the host's immune response.

病原体的致病性可以根据宿主的免疫反应而有所不同。

11.Understanding the pathogenicity of bacteria helps in developing effective antibiotics.

了解细菌的致病性有助于开发有效的抗生素。

12.Vaccines aim to reduce the pathogenicity of infectious diseases.

疫苗旨在降低传染病的致病性。

13.The research focused on the pathogenicity of the newly discovered virus.

这项研究集中在新发现的病毒的致病性上。

作文

Pathogenicity is a term that describes the ability of an organism, particularly a microorganism, to cause disease in a host. Understanding pathogenicity (致病性) is crucial for scientists and healthcare professionals as it helps them to develop strategies to prevent and treat infections. The study of pathogenicity (致病性) involves examining various factors, including the virulence of the pathogen, the host's immune response, and environmental conditions that may influence disease development.Microorganisms such as bacteria, viruses, fungi, and parasites can exhibit varying degrees of pathogenicity (致病性). For example, some strains of Escherichia coli are harmless and part of the normal gut flora, while others can cause severe gastrointestinal diseases. This variability is often due to specific genetic traits that enable certain strains to adhere to host tissues, evade the immune system, or produce toxins that damage host cells.The concept of pathogenicity (致病性) extends beyond just the presence of a pathogen; it also encompasses the interaction between the pathogen and the host. Factors such as the host's age, nutritional status, and existing health conditions play a significant role in determining whether an infection will occur and how severe it will be. For instance, young children and elderly individuals often have weaker immune systems, making them more susceptible to infections with high pathogenicity (致病性).One of the critical aspects of studying pathogenicity (致病性) is the identification of virulence factors. These are specific attributes or components of pathogens that enhance their ability to cause disease. For example, certain bacteria may produce enzymes that break down host tissues, allowing the bacteria to spread more easily. Others might have surface structures that help them attach to host cells more effectively. By understanding these factors, researchers can develop targeted therapies and vaccines to combat infections.In recent years, the emergence of antibiotic-resistant bacteria has raised concerns about pathogenicity (致病性) and its implications for public health. When bacteria evolve resistance to commonly used antibiotics, they become more difficult to treat, leading to higher rates of morbidity and mortality. This highlights the importance of ongoing research into the mechanisms of pathogenicity (致病性) and the need for new treatment strategies.Moreover, the study of pathogenicity (致病性) is not limited to infectious diseases. It also includes understanding how certain non-infectious agents, such as toxins or allergens, can lead to disease. For example, exposure to certain chemicals can trigger immune responses that result in allergic reactions or other health issues. Therefore, comprehending pathogenicity (致病性) in a broader context is essential for developing comprehensive health strategies.In conclusion, pathogenicity (致病性) is a fundamental concept in microbiology and medicine that refers to the ability of pathogens to cause disease. By exploring the various factors that contribute to pathogenicity (致病性), researchers and healthcare professionals can better understand how to prevent and treat infections, ultimately improving public health outcomes. As we continue to face new challenges in infectious diseases, the significance of studying pathogenicity (致病性) cannot be overstated.

致病性是一个描述生物体，特别是微生物，在宿主中引起疾病能力的术语。理解致病性（pathogenicity）对科学家和医疗专业人员至关重要，因为它帮助他们制定预防和治疗感染的策略。对致病性（pathogenicity）的研究涉及检查各种因素，包括病原体的毒力、宿主的免疫反应以及可能影响疾病发展的环境条件。微生物如细菌、病毒、真菌和寄生虫可以表现出不同程度的致病性（pathogenicity）。例如，一些大肠杆菌株是无害的，是正常肠道菌群的一部分，而其他一些则可能引起严重的胃肠道疾病。这种变异通常是由于特定的遗传特征，使某些菌株能够附着在宿主组织上、逃避免疫系统或产生损害宿主细胞的毒素。致病性（pathogenicity）的概念不仅限于病原体的存在；它还包括病原体与宿主之间的相互作用。宿主的年龄、营养状况和现有健康状况等因素在决定感染是否发生及其严重程度方面起着重要作用。例如，幼儿和老年人通常免疫系统较弱，更容易受到高致病性（pathogenicity）感染的影响。研究致病性（pathogenicity）的一个关键方面是识别毒力因子。这些是增强病原体引起疾病能力的特定属性或成分。例如，某些细菌可能产生酶，分解宿主组织，使细菌更容易传播。其他细菌可能具有帮助它们更有效地附着在宿主细胞上的表面结构。通过理解这些因素，研究人员可以开发针对性的疗法和疫苗来对抗感染。近年来，抗生素耐药细菌的出现引发了对致病性（pathogenicity）及其对公共健康影响的担忧。当细菌进化出对常用抗生素的耐药性时，它们变得更难治疗，导致更高的发病率和死亡率。这突显了对致病性（pathogenicity）机制的持续研究的重要性，以及新治疗策略的必要性。此外，致病性（pathogenicity）的研究不仅限于传染病。它还包括理解某些非传染性因素，如毒素或过敏原，如何导致疾病。例如，接触某些化学物质可能会引发免疫反应，从而导致过敏反应或其他健康问题。因此，以更广泛的背景理解致病性（pathogenicity）对于制定全面的健康策略至关重要。总之，致病性（pathogenicity）是微生物学和医学中的一个基本概念，指的是病原体引起疾病的能力。通过探索影响致病性（pathogenicity）的各种因素，研究人员和医疗专业人员可以更好地理解如何预防和治疗感染，从而最终改善公共健康结果。随着我们继续面临传染病的新挑战，研究致病性（pathogenicity）的重要性不容小觑。