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Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
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katiebug55 katiebug55
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6 years ago
Which of the following contributed to several measles epidemics in the 1990s?
 
  a. People had stopped getting immunizations for measles and other diseases.
  b. The measles vaccine was no longer effective against the agent because the virus had mutated.
  c. The measles vaccine did not provide lifetime immunity.
  d. Thousands of ineffective contaminated vaccine doses had unknowingly been injected.
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jogden1011jogden1011
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6 years ago
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katiebug55 Author
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6 years ago
Just got PERFECT on my quiz
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vanna2014
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2 hours ago
Thanks
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