Variola virus infection is initiated when the virus comes into contact with the oropharyngeal or respiratory mucosa of a susceptible person.

Smallpox

April 1, 2021 April 1, 2021 / , , , , / Diseases and conditions / Leave a Comment

Smallpox is a serious, contagious, and sometimes fatal infectious disease. Smallpox is caused by variola viruses, which are large, enveloped, single-stranded DNA viruses of the Poxvirus family and the Orthopoxvirus genus