The pneumonia vaccine frequency depends on age, health status, and vaccine type:
- For children under 5 years, pneumococcal conjugate vaccine (PCV15 or PCV20) is given in a 4-dose series at 2 months, 4 months, 6 months, and 12-15 months. Catch-up doses depend on child's age and previous vaccinations.
- Adults 50 years and older who have never received a pneumococcal vaccine should get one dose of PCV20 or PCV21, or PCV15 followed by a dose of PPSV23 one year later.
- Adults and children with certain risk factors may receive additional doses or a slightly different schedule.
- The minimum interval between pneumococcal conjugate vaccine doses is generally 8 weeks.
In summary, childhood vaccination involves multiple doses in early years, and adults typically get one or two doses depending on vaccine type and risk factors, with booster timing tailored to individual circumstances.
