Their immune systems may not be strong enough to keep an infection contained. Any fever in an infant less than six weeks of age usually requires a medical evaluation. This may put them at risk for more severe cases of common illnesses than more mature infants. Check with your doctor for an assessment of your child's status. Babies who are most likely to be susceptible to chronic lung disease are those born prematurely or with low birth weight.
Some babies outgrow the condition as the lungs mature.
Cystic fibrosis is an inherited condition that involves over- production in the lungs of thick, sticky mucus that clogs the airways and makes breathing difficult. These children are particularly prone to severe lung infections and have chronic intestinal problems. Depending on the seriousness, your child may be restricted in his or her activities. Most defects are treat- able with medication or surgery. Heart murmurs themselves are usually not considered serious defects and children diagnosed with murmurs are not typically restricted in their activities as they get older.