Babies may have no symptoms after receiving the 13-valent pneumonia vaccine, or they may have symptoms such as fever, localized discomfort at the injection site, and gastrointestinal reactions. The 13-valent pneumonia vaccine, also called 13-valent pneumococcal polysaccharide conjugate vaccine, is used to prevent pneumococcal diseases caused by 13 pneumococcal serotypes, such as bronchitis, pneumonia, meningitis, otitis media, sinusitis, etc. Each baby’s physical condition is different, and the reaction after the vaccine is not the same, and most of the babies have no symptoms of discomfort after the 13-valent pneumonia vaccine. Some babies have fever after the 13-valent pneumonia vaccine, the vaccine into the human body to stimulate the body’s immune system to produce specific antibodies, antigens and antibodies combined with each other will stimulate the release of endogenous factors, thus causing the body to fever, this fever is self-limiting, the vaccine appeared within 24 hours, within 72 hours will generally subside and disappear. Some babies have redness, swelling, pain, hard nodules and other discomforts at the vaccination site after receiving 13-valent Pneumonia Vaccine, and those who are sensitive may have allergic reactions, with rashes, itching and other discomforts. Some babies have gastrointestinal symptoms such as nausea, vomiting, diarrhea, etc., and relatively poor mental status after receiving 13-valent pneumonia vaccine. Observe the changes in your baby’s body after vaccination and seek prompt medical attention for any serious discomfort.