5. Females of childbearing potential (defined as having experienced their first menstrual cycle) must be abstinent or be using adequate contraceptive precautions e.g. intrauterine contraceptive device, oral contraceptive, or equivalent hormonal contraception (e.g., progestogen-only implant, vaginal contraceptive ring, cutaneous hormonal patch or injectable contraceptives) for at least 2 months after vaccination. Females aged ≥ 9 years must also return a negative urine pregnancy test at enrolment.