Smallpox

Definition

Smallpox is a highly contagious and deadly disease caused by the variola virus. It was introduced to the Americas by European explorers, leading to massive death tolls among indigenous populations who had no immunity.

Related terms

Epidemic: This refers to a widespread occurrence of an infectious disease in a community at a particular time.

Immunity: This is the ability of an organism to resist a particular infection or toxin by action of specific antibodies or sensitized white blood cells.

Biological Warfare: The use of biological toxins or infectious agents with intent to harm or kill. In context, though unintentional, introduction of smallpox can be seen as early form of biological warfare due its devastating impact on native population.