B.1 If there is 40 feet or more of suitable soil between the disposal area and the waterbody/course, DHS may approve the variance without requiring additional engineering. B.2 If there is 20 feet to 40 feet of suitable soil between the disposal area and the waterbody/course, DHE may approve the variance if: B.2.a The system handles gray water only and utilizes a holding tank or an alternative toilet for black waste.
Vaccination. One of the best ways to prevent smallpox is through vaccination. Vaccine given to individuals before exposure to smallpox can completely protect them. Vaccination within 3 days after exposure prevents or greatly lessens the severity of smallpox in most people.
Survivors of smallpox often have severely deformed skin from the pustules. 1  Types: Variola major, or smallpox, has a death rate of 30%. 2  Variola minor, or alastrim, is a milder form of the virus with a death rate of 1%. 3  Four types of variola exist: classic, hemorrhagic, malignant, and modified. Types: Variola major, or smallpox, has a death rate of 30%. 2  Variola minor, or alastrim, is a milder form of the virus with a death rate of 1%.