What Are Common Side Effects of Immunizations on Children?


Quick Answer

While potential side effects vary between different immunizations, some common responses include a sore arm, a low-grade fever and a headache, according to the Centers for Disease Control and Prevention. Other mild symptoms that appear with some regularity include fatigue and a temporary loss of appetite.

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Full Answer

DTaP, a vaccine ordinarily given in childhood to prevent diphtheria, tetanus and acellular pertussis, has several common side effects: fussiness for up to one child in three, fatigue for one child in 10, and fever for one child in four, explains the CDC. Approximately one in five children who have the MMRV vaccine report a fever, while one in 20 children have a mild rash.

Hib, a routine vaccine for children designed to prevent haemophilus influenzae type b, has a fever and redness or swelling where the shot was administered as its primary potential side effects. If these appear, it is generally right after the shot is given and lasts for two to three days, states the CDC. After receiving the HPV vaccine, which is given to prevent the spread of human papillomavirus gardasil, eight in 10 people report pain in the arm where the shot was given, one in 10 people claim to have a mild fever, and one in three people complain of a headache.

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