Which vaccine is recommended for older adults to prevent pneumonia?

The pneumococcal vaccine is specifically recommended for older adults to prevent pneumonia caused by Streptococcus pneumoniae, which is a common and potentially serious cause of pneumonia in this age group. As individuals age, their immune systems may weaken, making them more susceptible to infections, including pneumonia. The pneumococcal vaccine helps to protect against these infections by stimulating the body's immune response to recognize and fight the bacteria that cause pneumonia.

In contrast, the influenza vaccine is essential for preventing the flu and its complications, but it doesn't specifically target pneumonia caused by pneumococcal bacteria. The tetanus vaccine is important for preventing tetanus, which is not directly related to pneumonia. The shingles vaccine is intended to prevent herpes zoster, known for causing pain and a distinctive rash, rather than respiratory infections. Therefore, the pneumococcal vaccine is the most relevant and protective measure for older adults against pneumonia.