Pandem is a term often used to describe a widespread outbreak of a disease that affects a large number of people across multiple countries or continents. It typically involves infectious diseases that can spread easily from person to person, leading to significant health impacts and requiring coordinated public health responses. The most notable example of a pandemic in recent history is the COVID-19 pandemic, caused by the SARS-CoV-2 virus. This pandemic highlighted the importance of global health measures, including vaccination, social distancing, and hygiene practices, to control the spread of infectious diseases and protect public health.