👉 Epidemic is a medical condition characterized by an increase in the number of cases or individuals who are infected with a particular virus or bacteria. This can occur suddenly and unexpectedly, leading to widespread disease outbreaks that can have significant consequences for public health and welfare. The concept of "epidemic" has evolved over time as different cultures and societies have approached this term differently. In some contexts, it may refer to a sudden increase in cases of an infectious disease, while in others, it could be