alternative host

简明释义

交替寄主

英英释义

例句

1.During the maintenance window, users will be redirected to an alternative host (替代主机) to minimize downtime.

在维护窗口期间，用户将被重定向到一个alternative host (替代主机) 以最小化停机时间。

2.Our IT team set up an alternative host (替代主机) for the database to improve redundancy.

我们的IT团队设置了一个alternative host (替代主机) 用于数据库，以提高冗余性。

3.In case of server failure, we can switch to an alternative host (替代主机) to ensure our website remains online.

如果服务器故障，我们可以切换到一个alternative host (替代主机) 以确保我们的网站保持在线。

4.To enhance performance, we are considering using an alternative host (替代主机) located closer to our user base.

为了提高性能，我们正在考虑使用一个位于更接近用户群的alternative host (替代主机)。

5.The application was designed to automatically connect to an alternative host (替代主机) if the primary one is unavailable.

该应用程序被设计为在主要主机不可用时自动连接到一个alternative host (替代主机)。

作文

In the world of biology and ecology, the term alternative host refers to an organism that can support the life cycle of a parasite or pathogen, other than its primary host. Understanding the role of alternative hosts is crucial for researchers studying diseases, especially those that affect crops and livestock. For example, certain viruses and bacteria have specific hosts they prefer, but they can also infect other species under certain conditions. This ability to switch hosts can complicate disease management strategies, as it may allow pathogens to survive and spread even when their primary host population is reduced. One significant aspect of alternative hosts is their impact on the transmission dynamics of infectious diseases. For instance, in the case of plant pathogens, an alternative host can serve as a reservoir, harboring the pathogen and allowing it to persist in the environment when the primary host is not available. This means that farmers must consider not only the main crops they are growing but also any nearby plants that could act as alternative hosts. Furthermore, the concept of alternative hosts extends beyond agriculture. In wildlife ecology, many zoonotic diseases—those that can be transmitted from animals to humans—depend on the presence of alternative hosts to sustain their life cycles. For example, the West Nile virus primarily circulates between birds, but it can also infect mosquitoes and mammals, including humans. The presence of these alternative hosts can influence the epidemiology of the disease, making it essential for public health officials to monitor various animal populations. The implications of alternative hosts are profound, particularly in the context of climate change and habitat destruction. As ecosystems are altered, the interactions between primary hosts and alternative hosts may change, potentially leading to increased disease outbreaks. For example, deforestation can lead to closer contact between wildlife and human populations, facilitating the spillover of pathogens from alternative hosts into humans. To mitigate the risks associated with alternative hosts, integrated pest management (IPM) strategies are often recommended. These strategies involve understanding the ecology of both primary and alternative hosts, as well as implementing practices that reduce the likelihood of disease transmission. For instance, crop rotation can help manage alternative hosts by disrupting the life cycle of pathogens that rely on specific plants. In conclusion, the concept of alternative hosts is essential for understanding disease dynamics in both agricultural and natural ecosystems. By recognizing the role of these organisms, scientists and policymakers can develop more effective strategies for disease prevention and control. As we face new challenges in managing diseases, a thorough understanding of alternative hosts will be critical in safeguarding both human health and agricultural productivity.

在生物学和生态学的世界中，术语替代宿主指的是一种能够支持寄生虫或病原体生命周期的生物体，而不是其主要宿主。理解替代宿主的作用对于研究疾病的研究人员至关重要，尤其是那些影响农作物和牲畜的疾病。例如，某些病毒和细菌有特定的宿主偏好，但在某些条件下，它们也可以感染其他物种。这种转换宿主的能力可能会使疾病管理策略变得复杂，因为它可能允许病原体在主要宿主种群减少时生存和传播。替代宿主的一个重要方面是它们对传染病传播动态的影响。例如，在植物病原体的情况下，替代宿主可以作为储存库，寄存病原体并允许其在主要宿主不可用时在环境中持续存在。这意味着农民必须考虑他们正在种植的主要作物以外的任何附近植物，这些植物可能充当替代宿主。此外，替代宿主的概念超越了农业。在野生动物生态学中，许多人畜共患病——那些可以从动物传播给人类的疾病——依赖于替代宿主的存在来维持其生命周期。例如，西尼罗河病毒主要在鸟类之间循环，但它也可以感染蚊子和哺乳动物，包括人类。这些替代宿主的存在可能会影响疾病的流行病学，使公共卫生官员必须监测各种动物种群。替代宿主的影响深远，特别是在气候变化和栖息地破坏的背景下。随着生态系统的改变，主要宿主和替代宿主之间的相互作用可能会发生变化，从而可能导致疾病爆发的增加。例如，森林砍伐可能导致野生动物与人类种群之间的接触更为密切，促进病原体从替代宿主传播到人类。为了减轻与替代宿主相关的风险，通常建议采用综合害虫管理（IPM）策略。这些策略涉及了解主要宿主和替代宿主的生态学，以及实施减少疾病传播可能性的实践。例如，作物轮作可以通过扰乱依赖特定植物的病原体的生命周期来帮助管理替代宿主。总之，替代宿主的概念对于理解农业和自然生态系统中的疾病动态至关重要。通过认识到这些生物的作用，科学家和政策制定者可以制定更有效的疾病预防和控制策略。随着我们面临管理疾病的新挑战，深入理解替代宿主将对保护人类健康和农业生产力至关重要。