Edward Jenner was able to protect people from contracting smallpox by injecting them with material ...

Edward Jenner was able to protect people from contracting smallpox by injecting them with material from cowpox pustules because

a. both smallpox and cowpox are caused by the same virus, which causes a less severe disease in cows.
b. antibodies against cowpox virus antigens can bind to similar proteins on the coat of smallpox virus.
c. the injected fluid activated the nonspecific immune response, guarding against any subsequent infection.
d. the material from the pustule contained antibodies that the cow had produced to the viral coat proteins.
e. the material from the pustules contained weakened smallpox virus.

Question 2

Memory cells are ________ that function in _______.

a. macrophages; removing the debris of an infection
b. T cells; remembering self-antigen, thus protecting the body's cells
c. T cells; determining which B cells will get activated during a second exposure to an antigen
d. B cells; retaining the ability to make an antibody used to fight a previous infection
e. B cells; remembering where to direct macrophages to fight a local infection

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Edward Jenner was able to protect people from contracting smallpox by injecting them with material ...

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