The pneumococcal vaccine is considered safe. Some people experience mild side effects, but these are usually minor and last only a short time. When side effects do occur, the most common include swelling and soreness at the injection site. A few people experience fever and muscle pain. Anyone who has a severe allergy to any component of the vaccine should not get that vaccine. As with any medicine, there are very small risks that serious problems could occur after getting the vaccine. However, the potential risks associated with pneumococcal disease are much greater than the potential risks associated with the pneumococcal vaccine. You cannot get pneumococcal disease from the vaccine. Ask your healthcare provider if you should delay receiving the pneumococcal vaccine if you have an illness with fever or other active infection.