
Pandemics
A pandemic is an outbreak of a disease that spreads across multiple countries or continents, affecting a large number of people worldwide. It occurs when a new pathogen, such as a virus, emerges and spreads easily among humans, who often have little to no immunity. Pandemics can cause widespread illness, strain healthcare systems, and impact daily life. Examples include the 1918 flu, HIV/AIDS, and COVID-19. Managing pandemics involves global cooperation, public health measures, vaccination, and treatment strategies to reduce their impact and protect populations.