Smallpox Signs, Spread, and Prevention

Smallpox is a severe contagious disease caused by the Variola major virus. This virus is a double-stranded DNA member of the Poxviridae family. It spreads mainly through inhaling virus-laden droplets or through direct contact with infectious scabs.

After exposure, the incubation period is usually...

Smallpox is a contagious disease caused by the Variola major virus, a double-stranded DNA virus from the poxvirus family.

Transmission mainly occurs through inhalation of virus-laden droplets or contact with infectious dried scabs.

Upon inhalation, the virus targets the mucosal surfaces of the respiratory tract, attaching to the cell...