Common side effects of pneumococcal vaccines include mild soreness, redness and swelling at the site of the shot that may last for several days, as stated by WebMD. Less than 1 percent of vaccine recipients experience fever, muscle aches or severe pain at the site of the shot.
The risk of death or harm from a pneumococcal vaccine is extremely unlikely, according to WebMD. In studies of the PCV vaccine, the option recommended for young children, 1 in 4 infants experience tenderness, swelling or redness at the site of the shot, while 1 in 3 experience a fever higher than 100.4 degrees Fahrenheit. In rare instances, a vaccine recipient may experience a severe allergic reaction to an ingredient in the vaccine. Most reactions occur within several minutes of receiving the shot. Symptoms may include hives, high fever, weakness, pale skin, hoarse voice, dizziness, rapid heart beat, difficulty breathing and behavioral changes. Individuals should seek immediate medical care if they experience any of these signs after receiving a pneumococcal vaccine.
Those who are severely ill should talk to a doctor before receiving the vaccine, and pregnant women should avoid it unless absolutely necessary as the vaccine's safety during pregnancy is unknown as of 2015, as confirmed by WebMD. Individuals should not receive this vaccine if they have had a life-threatening allergic reaction to another vaccine.