Definition

Noun A mild, less severe form of smallpox, caused by a less virulent strain of the Variola virus. It is characterized by a slower progression, a less pronounced rash, and a much lower fatality rate compared to classical smallpox.

Usage

The term is used specifically in medical and historical contexts to describe this distinct, attenuated form of the disease. * The outbreak was caused by alastrim, so the mortality rate was significantly lower. * Alastrim, also known as variola minor, was once endemic in some regions.

Advanced Usage

• The term is often used in contrast to variola major, the classic, severe form of smallpox.
• It appears in discussions about the history of disease eradication, as the existence of a milder form complicated surveillance and containment efforts.

Variants and Related Words

• Variola minor: The formal medical synonym for alastrim.
• Smallpox: The general disease caused by the virus, encompassing both major and minor forms.

Synonyms

• Variola minor

Different Meanings

This word has a single, specific medical meaning. It does not have other general definitions.

Noun

1. a mild form of smallpox caused by a less virulent form of the virus