Risks of a vaccine reaction
With any medicine, including vaccines, there is a chance of side effects. These are usually mild and go away on their own, but serious reactions are also possible.
About half of people who get PPSV have mild side effects, such as redness or pain where the shot is given, which go away within about two days.
Less than 1 out of 100 people develop a fever, muscle aches, or more severe local reactions.