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What is an epidemic?<br>The term "epidemic" is often abused; most people actually mean "outbreak".<br>In any case, it is important to remember the relative terms "epidemic" and "outbreak", which have different meanings between viruses and vectors. For example, at any time, thousands of flu cases<br>Australia: influenza. When the outbreak reaches the local level many times, it is classified as an epidemic. Epidemics are an integral part of natural and health opportunities, and their economic and military impacts make them the object of model study.<br>
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