"The pneumococcal shot (pneumococcal vaccination) may help you prevent, or lower the risk of becoming seriously ill from pneumonia caused by bacteria. It may also help you prevent future infections."
Why is this important?: "Residents should be asked if they have been vaccinated for pneumonia, and if not, you should be given the pneumococcal shot unless there is a medical reason why you should not receive it."
Taken from the Center for Medicaid and Medicare Services: Nursing Home Information for Consumers