| 1 | Penicillin is particularly effective against pneumonia. | |
| 2 | In the short term, the medicine may not be very effective. | |
| 3 | He concluded that empirical evidence supports the efficacy of these treatments. | |
| 4 | It is believed that the wilder the animal or plant, the better the effects. | |
| 5 | Because scientists have found that, in battling chronic infections, sugar can boost the effectiveness of antibiotics. |