Acute fevers in infants and children are usually caused by an infection. Teething does not typically cause fever over 101° F.
The most common causes of acute fevers are:
- Respiratory infections due to a virus, such as colds or flu
- Gastroenteritis (infection of the digestive tract) due to a virus
- Certain bacterial infections, particularly ear infections (otitis media), sinus infections, pneumonia, and urinary tract infections
Newborns and young infants are at higher risk of certain serious infections because their immune system is not fully developed. Sepsis, pneumonia and meningitis may be acquired before birth or during birth.
Less common causes of acute fevers include side effects of vaccinations and of certain drugs, bacterial infections of the skin or joints, viral or bacterial infections of the brain (encephalitis).Heatstroke causes a very high body temperature.
Typically, a fever due to vaccination lasts a few hours to a day after the vaccine is given. However, some vaccinations can cause a fever even 1 or 2 weeks after the vaccine is given.Children who have a fever when they are scheduled to receive a vaccine can still receive the vaccine.
Chronic fever most commonly results from
- A prolonged viral illness
- Back-to-back viral illnesses, especially in young children
Chronic fever can also be caused by many other infectious and non-infectious disorders. Infectious causes include hepatitis, sinusitis, pneumonia, abscesses in the abdomen, infections of the digestive tract caused by bacteria or parasites, bone infections or osteomyelitis, heart infections, and tuberculosis. Non-infectious causes include Kawasaki disease, inflammatory bowel disease, juvenile idiopathic arthritis or other connective tissue disorders, and cancer such as leukaemia and lymphoma.
Here are some home remedies to keep the baby comfortable:
- Make sure the baby is hydrated.
- Small amounts of food at regular intervals should be given.
- You do not need to make the baby wear extra clothing or take off layers of the baby’s clothes.
- The child can be given infant paracetamol or ibuprofen, but only if he/she is three months or older.
- Let the baby have enough rest.