A congenital heart defect, also referred to as congenital heart disease or CHD, is a heart problem that is present at birth and is caused by an error in the development of the heart during fetal development.n most cases when a baby is born with a congenital heart defect, there is no known reason for the heart to have formed incorrectly. Scientists know that some types of congenital heart defects can be related to an abnormality of an infant's chromosomes, single gene defects or environmental factors.
Other complications of the flu that can affect children are: 1  Convulsions caused by fever. 2  Croup. 3  Ear infections, such as otitis media.
Tamiflu can sometimes keep you from getting the flu if you take it before you get sick. The term flu refers to illness caused by the influenza virus. The flu is a respiratory infection that can cause symptoms such as fever, chills, aches and pains, cough, and sore throat.. No. The number of times a day (frequency) and the number of days (duration) that you take Tamiflu are different for treatment and prevention of the flu. Your healthcare provider will tell you how to take Tamiflu.