Cowpox Is Very Similar to Smallpox, Which Is More Dangerous

question 59

Multiple Choice

Cowpox is very similar to smallpox, which is more dangerous for humans. Edward Jenner promoted the use of cowpox as a vaccination to provide patients immunity from future smallpox epidemics. Patients given cowpox developed

• A) passive immunity.
• B) active immunity.
• C) an inflammatory response that increased the IgG production.
• D) high levels of complement.
• E) high levels of interferon, although Jenner did not realize these diseases were viral.

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