What is meant by the term pandemic?

Answer 1

A pandemic refers to 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 spreads easily among humans. The World Health Organization (WHO) defines a pandemic based on the sustained human-to-human transmission of the disease, rather than its severity. Examples include the COVID-19 pandemic and the 1918 influenza pandemic.