Antibiotics are effective against bacterial infections, but not viral infections. Among the diseases listed:
- The flu: Viral infection (not treated with antibiotics)
- Mononucleosis: Typically caused by the Epstein-Barr virus (not treated with antibiotics)
- Strep throat: Caused by Streptococcus bacteria (can be treated with antibiotics)
- Hepatitis: Can be viral or bacterial, but most common forms (A, B, C) are viral (not treated with antibiotics)
Therefore, antibiotics can be used to cure strep throat.