Appropriate Age: The vaccine can be given from one year of age, but we should note that we either take it on the same day as the one-year health vaccine (MMR) or separate them by 28 days.

Doses: The vaccine is two doses, with a minimum interval of four weeks between doses, and preferably three months. For adults (those over 13 years old), the interval is one month.

Injection Site: Injected subcutaneously (SC).

Contraindications: High fever, and also prohibited for those with diseases that affect immunity or those taking immunosuppressants because it's a live vaccine.