
Pneumococcal Vaccine
Medical conceptAbout
Pneumococcal vaccines are designed to protect against infections caused by Streptococcus pneumoniae, a bacterium that can lead to serious conditions like pneumonia, meningitis, and sepsis. There are two main types of pneumococcal vaccines: conjugate vaccines (PCVs) and polysaccharide vaccines (PPSVs). PCVs, such as PCV15 and PCV20, are recommended for children under two years old and adults over 65, as they provide a strong immune response and reduce the risk of colonization. PPSVs, like PPSV23, are often used in adults who have already received a PCV. The pneumococcal vaccine is crucial for high-risk groups, including older adults and those with compromised immune systems. It helps prevent severe pneumococcal diseases, which can be life-threatening. The vaccine is administered via injection, either intramuscularly or subcutaneously. While it cannot prevent all cases of pneumococcal disease, it significantly reduces the risk and severity of infections. Side effects are generally mild, including soreness at the injection site and mild fever. The vaccine is a vital tool in public health, contributing to herd immunity and reducing the spread of pneumococcal bacteria.