PPD

PPD, or Pneumococcal Polysaccharide Vaccine, is a shot that helps protect against pneumonia and other infections caused by the pneumococcus bacteria. It’s recommended mainly for older adults and certain at-risk groups, as it reduces the risk of serious illnesses like pneumonia, meningitis, and bacteremia. The vaccine works by stimulating your immune system to recognize and fight the bacteria if you encounter it later. While it doesn’t prevent all infections, it significantly lowers the chance of severe disease, making it an important tool for preventive health in vulnerable populations.