BI-330
Antibiotics
Biology · Secondary 3 · Medium · Antibiotics
Antibiotics like erythromycin are often prescribed only for bacterial infections, not for viral infections such as influenza. Which statement best explains why antibiotics do not work on viruses?
- Viruses do not have the cell structures that antibiotics act on.
- Viruses are too small for antibiotics to enter.
- Antibiotics are only effective when injected, not when viruses are present.
- Viruses already contain their own antibiotics.
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