Epidemics can refer to a disease or other specific health-related behavior (e.g., smoking) with rates that are clearly above the expected occurrence in a community or region. West Nile fever and the rapid increase in obesity rates are also considered epidemics. An epidemic disease doesn't necessarily have to be contagious. Yellow fever, smallpox, measles, and polio are prime examples of epidemics. The Centers for Disease Control and Prevention (CDC) describes an epidemic as an unexpected increase in the number of disease cases in a specific geographical area. This article will uncover the factors that make a pandemic and how it differs from epidemics and when a disease is endemic. Since the emergence of COVID-19 in 2020, the public has been bombarded with new language to understand the virus and the subsequent global public health response. The novel coronavirus pandemic is the perfect model for understanding what exactly a pandemic is and how it impacts life on a global scale.
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