| 1 | They' re administered as oral drops or added to infant formula. | |
| 2 | Most can be rehydrated quickly and easily by drinking large quantities of a solution of oral rehydration salts. | |
| 3 | But researchers in Israel have finally been able to create a oral pill that deactivates sperm before they reach the womb. | |
| 4 | Two new oral cholera vaccines which provide good protection for up to 3 years are now available for use by travellers. | |
| 5 | If you use the birth control pill - that is, an oral contraceptive - you're probably happy with its convenience and reliability. |
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