Smallpox is an infectious disorder caused by two viral variants named Variola major and Variola minor. This infectious disease is manifested by maculopapular rash and elevated fluid-filled blisters. Other symptoms may include high fever.
- Severe back and abdominal pain
Smallpox vaccination within three days of exposure will significantly lessen the severity of smallpox or even prevent it. Antiviral drugs are also used for treatment.