The Pneumococcal polysaccharide vaccine (PPSV23) (Pneumovax 23) offers protection against 23 different varieties of pneumococcal bacteria.
Pneumococcal polysaccharide vaccine (PPSV23) လို႔ေခၚတာက ပိုးအမ်ိဳးကြဲေပါင္း ၂၃ ခုကို ကာကြယ္ေပးလို႔ ျဖစ္တယ္။