Dr. Jeffery D Hanrahan M.D.

Progeria or Hutchinson-Gilford progeria syndrome (HGPS), is a rare genetic condition characterized by a rapidly aging appearance in children. Newborns and infants born with this condition typically look healthy and normal, but may physically display characteristic facial features, such as prominent...

The results of a large study published in the journal Pediatrics, has shown that childhood food allergies are more common and dangerous than previously thought. In this study, researchers conducted a detailed survey of about 38,000 families who had at least one child under the age of 18-years-old....

Influenza Influenza, also commonly called as the flu, is a highly contagious respiratory infection caused by viruses, particularly influenza A or influenza B. These viruses usually infect the throat, nose, and lungs. Although the flu causes mild symptoms in most people, it can also cause severe...

There exist many symptoms that make the mononucleosis disease similar to other diseases, which makes it very difficult to distinguish it from other infections. Doctors administer treatment of the patient by giving him or her a physical test. This annual test checks out the patient's medical history....

Fraternal twins definitionFraternal twins are commonly known as "non-identical twins" and can be simply defined as siblings who share the same womb but with different amniotic sacs and placentas. Biologically, they are said to be "dizygotic" meaning two different sperm cells fertilized two...

Croup is a common respiratory problem prevailing in young children that tends to develop in the fall or winter. It describes a deep and barking cough that is caused by an upper respiratory infection that blocks a child's ability to breathe. Its characteristic symptom is harsh coughing...