Antibiotics are often used to treat acne by reducing the number of bacteria on the skin. Knowing there are both 'good' and 'bad' forms of Propionibacterium acnes, which of the following statements about using antibiotics is true?
A. Some "bad" bacteria are reduced.
B. Some new bacterial infections can be prevented.
C. Only old infections can be controlled.
D. Some "good" bacteria are reduced.
E. Some new bacterial infections can begin.
F. Some "good" bacteria can become resistant and therefore lead to more infections.
G. Only "bad" bacteria are reduced.
H. Some "bad" bacteria can become resistant and therefore lead to more infections.
Answer:
D. Some "good" bacteria are reduced.
E. Some new bacterial infections can begin.
F. Some "good" bacteria can become resistant and therefore lead to more infections.
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