Animals, especially mammals, have played a critical role in the COVID-19 pandemic. The COVID-19 virus originated in animals, and the virus can jump back and forth between humans and animals. Moreover, animals have been central to the development of the various vaccines against the virus now employed around the world, continuing a long history. The interrelationships between animals and humans in both disease transmission and its prevention call for an interdisciplinary approach to medicine.

中文翻译：

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动物、疫苗和 COVID-19

动物，尤其是哺乳动物，在 COVID-19 大流行中发挥了关键作用。COVID-19病毒起源于动物，病毒可以在人与动物之间来回跳跃。此外，动物一直是目前世界各地使用的各种病毒疫苗开发的核心，延续了悠久的历史。动物和人类在疾病传播和预防方面的相互关系需要跨学科的医学方法。