smallpox

Question 1

what is the cause ?

smallpox

Answer 1

• variola major virus
• DNA virus that goes through the lytic cycle

Question 2

what was the fatality rate ?

smallpox

Answer 2

• 30-60%

Question 3

how has it been successfully eradicated ?

smallpox

Answer 3

• humans are the only disease reservoir
• the antigens cause a strong immune response
• the virus had a very low mutation rate
• there were few antigenic types
• the vaccination program was successful

Question 4

what were the symptoms ?

smallpox

Answer 4

• blisters covering the skin
• fever
• vomiting
• severe pain

Question 5

describe the first vaccine

smallpox

Answer 5

• Edward Jenner
• did an experiment in 1796
• injected a boy with puss from cowpox
• this lead to the immunity against smallpox.