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What are some causes of a high fever in infants?

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Quick Answer

Causes of a high fever in infants include a viral or bacterial infection, a reaction to immunizations such as tetanus, diphtheria or pneumococcai vaccines, or heat exhaustion, explains Mayo Clinic. Babies may also experience a high fever when coping with an extreme sunburn.

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Full Answer

A fever is often a sign of an infection, including a mild cold, according to WebMD. A baby may also contract a fever when overdressed or overheated, notes Medline Plus. Fevers are often a sign that the body is fighting off an infection, but even if infants appear to be feeling well, it is necessary to report fevers above 100.4 Fahrenheit in an infant to a medical professional. Babies with high fevers are at risk for febrile seizures caused by a fever.

Fevers can produce additional symptoms in infants such as irritability, rashes, vomiting and diarrhea, explains WebMD. Infants who have trouble breathing, act sluggish or refuse to eat need treatment by a medical professional.

Infants with fevers should not be bundled up with extra clothes or blankets, even if chills exist, according to Medline Plus. An extra layer of clothing can make the fever rise. Parents may give a child with a fever acetaminophen and ibuprofen, but it is important to consult a doctor before administering medication to infants three months of age or younger.

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