Study on a MenACYW Conjugate Vaccine Administered as a Single Dose in Participants Aged 12 Months and Older in Vietnam

Inclusion Criteria: \- Aged 12 months and above on the day of inclusion Adults: * Aged 18 and above on the day of inclusion * A female participant was eligible to participate if she was not pregnant or breastfeeding and one of the following conditions applies: * Was of non-childbearing potential. To be considered of non-childbearing potential, a female must be pre-menarche or post-menopausal for at least 1 year, or surgically sterile. * OR Was of childbearing potential and agreed to use an effective contraceptive method or abstinence from at least 4 weeks prior to study intervention administration until at least 4 weeks after study intervention administration. A female participant of childbearing potential would have a negative highly sensitive pregnancy test (urine) within 1 week before the dose of study intervention. * Informed consent form was signed and dated * Was able to attend all scheduled visits and to comply with all study procedures Adolescents: * Aged 10 to 17 years on the day of inclusion * A female participant was eligible to participate if she is not pregnant or breastfeeding and one of the following conditions applies: * Was of non-childbearing potential. To be considered of non-childbearing potential, a female must be pre-menarche. * OR Was of childbearing potential and agrees to use an effective contraceptive method or abstinence from at least 4 weeks prior to study intervention administration until at least 4 weeks after study intervention …