Pandemic

A pandemic is an outbreak of a disease that occurs on a global scale, affecting a large number of people across multiple countries or continents. It typically involves a new infectious agent or strain that can easily spread among human populations, leading to widespread transmission. Pandemics often arise when a pathogen (such as a virus or bacterium) is introduced to a new human population, where it encounters a lack of pre-existing immunity. The term is commonly associated with infectious diseases but can also describe circumstances in which other health crises or conditions impact populations broadly. A pandemic typically induces substantial social, economic, and health challenges, prompting coordinated responses from governments, health organizations, and the community to mitigate its effects.