cercarial

简明释义

英[sɜːˈkeərɪəl]美[sərˈkerɪəl]

adj. 尾蚴的；摇尾幼虫的

英英释义

单词用法

同义词

反义词

例句

1.Objective To know the infected situation of cercarial dermatitis along the banks of Huaihe river.

目的了解淮河水系淮南地区尾蚴性皮炎感染状况。

2.The mid-lateral amd mid-dorsal of cercarial body contain granule-shaped masses mucoprotein and diastase-fast PAS positive substances.

尾蚴体的中部含有呈颗粒团的粘蛋白和抗淀粉酶的PAS阳性物质。

3.The mid-lateral amd mid-dorsal of cercarial body contain granule-shaped masses mucoprotein and diastase-fast PAS positive substances.

尾蚴体的中部含有呈颗粒团的粘蛋白和抗淀粉酶的PAS阳性物质。

4.The infection rate, mortality, precercarial period and cercarial production of test snails were observed and compared.

观察的内容包括：钉螺感染率、死亡率、尾蚴逸出前期及逸出尾蚴数量等。

5.In freshwater environments, the cercarial 尾蚴 can penetrate the skin of hosts.

在淡水环境中，尾蚴可以穿透宿主的皮肤。

6.The cercarial 尾蚴 stage of the parasite is crucial for its life cycle.

寄生虫的尾蚴阶段对其生命周期至关重要。

7.Symptoms of the disease often appear after exposure to cercarial 尾蚴 in contaminated water.

在受污染的水中接触到尾蚴后，疾病的症状通常会出现。

8.Researchers are studying the cercarial 尾蚴 behavior to find ways to control its spread.

研究人员正在研究尾蚴的行为，以寻找控制其传播的方法。

9.The infection begins when the cercarial 尾蚴 enters the human body.

感染开始于尾蚴进入人体时。

作文

The study of parasitology reveals a fascinating world of organisms that have adapted to live within or on other living beings. One such organism is the trematode, commonly known as a fluke. These parasites have complex life cycles that often involve multiple hosts. A crucial stage in their life cycle is the release of larvae known as cercariae (尾蚴), which play a significant role in the transmission of these parasites to their next host. Understanding cercariae (尾蚴) is essential for comprehending how these parasites infect various species, including humans.Cercariae are typically released from an intermediate host, often a snail, into the surrounding environment, such as freshwater bodies. Once released, they swim actively and seek out a definitive host, usually a vertebrate. The morphology of cercariae (尾蚴) is uniquely adapted for this purpose; they possess a tail that allows them to move efficiently through water. This motility is crucial, as it increases their chances of encountering a suitable host.When cercariae (尾蚴) find a potential host, they penetrate the skin or enter through other routes depending on the species. This penetration process is often facilitated by secretions that help the larvae to breach the host's defenses. Once inside, the cercariae (尾蚴) undergo further development, transforming into adult flukes that can then reproduce and continue the cycle.The impact of cercariae (尾蚴) on public health cannot be overstated. In many parts of the world, infections caused by flukes transmitted through cercariae (尾蚴) are prevalent. For instance, Schistosomiasis, caused by Schistosoma species, is a significant health concern in tropical and subtropical regions. People become infected when they come into contact with contaminated water where cercariae (尾蚴) are present. The disease can lead to severe health issues, including liver damage, bladder problems, and even increased risk of cancer.Efforts to control the spread of diseases associated with cercariae (尾蚴) focus on improving sanitation, educating communities about avoiding contact with contaminated water, and developing treatments for those infected. Research continues to explore the biology of cercariae (尾蚴) to identify potential targets for intervention. Understanding their life cycle, behavior, and interactions with hosts is vital for creating effective strategies to reduce their prevalence and impact.In conclusion, cercariae (尾蚴) represent a critical phase in the life cycle of trematodes, linking the complex interactions between parasites and their hosts. By studying these larvae, researchers can gain insights into the ecology of parasites and develop better methods for controlling their spread. The significance of cercariae (尾蚴) extends beyond mere biological interest; it has profound implications for public health and environmental management. As we continue to learn more about these fascinating organisms, we enhance our ability to combat the diseases they cause and protect vulnerable populations around the world.

寄生虫学的研究揭示了一个迷人的生物世界，这些生物已适应于生活在其他生物体内或其上。其中一种生物是吸虫，通常被称为蠕虫。这些寄生虫的生命周期复杂，通常涉及多个宿主。在它们的生命周期中，一个关键阶段是释放被称为cercariae（尾蚴）的幼虫，这在将这些寄生虫传播到下一个宿主中起着重要作用。理解cercariae（尾蚴）对理解这些寄生虫如何感染各种物种（包括人类）至关重要。尾蚴通常从一个中间宿主（通常是蜗牛）释放到周围环境中，例如淡水体。一旦释放，它们便积极游动，寻找最终宿主，通常是脊椎动物。cercariae（尾蚴）的形态特征特别适应这一目的；它们具有能够有效在水中移动的尾巴。这种运动能力至关重要，因为它增加了它们遇到合适宿主的机会。当cercariae（尾蚴）找到潜在宿主时，它们会通过皮肤渗透或通过其他途径进入，具体取决于物种。这一渗透过程通常受到分泌物的促进，帮助幼虫突破宿主的防御。一旦进入，cercariae（尾蚴）将经历进一步的发展，转变为可以繁殖的成年吸虫，从而继续生命周期。cercariae（尾蚴）对公共健康的影响不容小觑。在世界许多地方，通过cercariae（尾蚴）传播的蠕虫感染普遍存在。例如，由血吸虫属引起的血吸虫病在热带和亚热带地区是一个重大健康问题。人们在接触到含有cercariae（尾蚴）的污染水时会感染该病。该疾病可能导致严重的健康问题，包括肝损伤、膀胱问题，甚至增加癌症风险。控制与cercariae（尾蚴）相关疾病传播的努力集中在改善卫生条件、教育社区避免接触污染水以及为感染者开发治疗方案上。研究仍在继续，探索cercariae（尾蚴）的生物学，以识别潜在的干预目标。理解它们的生命周期、行为和与宿主的相互作用对制定有效的减少其流行和影响的策略至关重要。总之，cercariae（尾蚴）代表了吸虫生命周期中的一个关键阶段，连接了寄生虫与宿主之间复杂的相互作用。通过研究这些幼虫，研究人员可以深入了解寄生虫的生态学，并制定更好的控制其传播的方法。cercariae（尾蚴）的意义超出了单纯的生物兴趣；它对公共健康和环境管理具有深远的影响。随着我们对这些迷人生物了解的不断深入，我们增强了对抗它们引起的疾病和保护全球脆弱人群的能力。