Fever in infants
A fever is a temporary increase in body temperature and is a common symptom of illness. When a fever occurs, the immune system is launching an attack to remove the cause of the illness by raising the body’s temperature (heat inactivates many pathogens). As adults, we have a tightly controlled thermostat to help regulate our body temperature. Because a newborn’s temperature regulation system is immature, an unexplained fever is a cause for concern.