Plaga is a term that refers to a widespread disease or infestation that affects a large number of individuals or organisms. It can be used in various contexts, including agriculture, where it describes the rapid spread of pests or diseases among crops, leading to significant economic losses. In a broader sense, plaga can also refer to social or environmental issues, such as pollution or invasive species, that disrupt ecosystems and human communities. Understanding and managing plaga is crucial for maintaining health and sustainability in both natural and human-made environments.