When a patient’s immune system becomes reactive to a drug, this is an example of? A. Super infection B. Drug resistance C. Allergy D. none Right Answer: Allergy Share : February 19, 2018 Asghar Khan Everyday Science Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -He was the first scientist to prove that plants move around the sun?Which of the following is not an enzyme?__________ are called the powerhouses of the cell?