A nurse is teaching a 55-year-old client about pneumococcal vaccination. Which statement is ACCURATE?

PNEUMOCOCCAL VACCINATION protects against Streptococcus pneumoniae, which causes pneumonia, meningitis, and bacteremia — conditions with high mortality especially in elderly and immunocompromised individuals. CURRENT CDC RECOMMENDATIONS (as of most recent guidelines): Adults 65 and older: pneumococcal vaccination recommended for all; Adults 19-64 with HIGH-RISK CONDITIONS: Immunocompromising conditions (HIV, transplant, cancer treatment, asplenia); Chronic conditions: heart disease, lung disease, liver disease, kidney disease, diabetes mellitus, CSF leaks, cochlear implants; Cigarette smoking (increases pneumococcal pneumonia risk).

Vaccine formulations: PCV15 (Prevnar 15) and PCV20 (Prevnar 20) are CONJUGATE vaccines — provide better immune memory; PPSV23 (Pneumovax 23) is a POLYSACCHARIDE vaccine — recommended as additional coverage after conjugate vaccine in some high-risk patients.

Schedule complexity: The schedule depends on prior vaccination history; for naive adults 65+, current guidelines generally recommend PCV20 alone OR PCV15 followed by PPSV23 — consult current CDC schedule.

Pn role: Assess vaccination history; administer per schedule; document; educate client that protection is not immediate (takes ~2 weeks); common side effects include injection site soreness, mild fever.