How long does an pneumonia shot last? Tue, Feb 23, 10 01:16PM by roman Pneumonia shots are usually given only once. Booster shots are required only if the doctor feels the need for the same. It is only in case of immuno compromised people TAGS: 1. pneumonia shot symptoms 2. pneumonia prevention shot 3. pneumonia shot complications 4. pneumonia shot pain 5. pneumonia shot swelling