When should the pneumonia vaccine be administered?
May 05, 2022
Source: Cainiu Health
Dr. Zhang Weiling
Introduction
From an age perspective, pneumococcal vaccination should be administered before the child reaches 2 years of age. Generally, protective antibodies induced by the vaccine last for at least five years. Note that only a single dose of the pneumococcal vaccine is required—except for immunocompromised individuals, who may need a booster dose five years after the initial vaccination.
The pneumococcal vaccine is primarily designed to prevent pneumonia caused by *Streptococcus pneumoniae*. Pneumococcal infection is a leading cause of mortality worldwide and a major etiological factor in pneumonia, meningitis, and otitis media. Regarding timing, the vaccine can be administered at any time of the year and may even be co-administered with the influenza vaccine—there is no fixed or restricted vaccination window. For convenience, multivalent pneumococcal vaccination can be scheduled during routine annual health examinations or outpatient visits.
From an age-based perspective, infants should receive the pneumococcal vaccine before reaching 2 years of age. Following vaccination, protective antibody levels typically persist for at least five years. Notably, only a single dose is generally required—except in immunocompromised or otherwise medically fragile individuals, who may require a booster dose five years after the initial vaccination.
The pneumococcal vaccine is administered via intramuscular injection into the lateral deltoid muscle of the upper arm or, alternatively, via subcutaneous injection. A single dose is usually sufficient; protective antibodies typically remain detectable for 3–5 years post-vaccination, and vaccination is appropriate throughout the year. Some children may experience mild, transient adverse reactions following vaccination, such as brief pain at the injection site, or mild redness and tenderness—these symptoms typically resolve spontaneously within 2–3 days.
