Rawan Nahas M.D.

What is a vaccine?Vaccines are products that enable a person to develop immunity against certain diseases. A vaccine can be given through needle injections, by aerosol, or by mouth. The polio vaccine is given in the form of mouth drops that contain live but weakened organisms. The vaccine gets into...

This mild viral disease most commonly seen in children is caused by enterovirus. Hand, foot, and mouth disease may happen in adults as well. It is characterized by sores in the mouth, hands, and legs and usually lasts for a few weeks. The disease is more common during the summer and fall. This...

The ketogenic diet is a high-fat, low-carb, adequate-protein diet that was designed by Dr. Russell Wilder in 1924. It became popular then for its effectiveness not only in treating epilepsy but in weight loss. After a few years, the popularity of the ketogenic diet began to wane as new...

Jaundice is a harmless condition that often affects newborn babies, which makes the skin and whites of the eyes become yellowish. The medical description of jaundice in newborns is neonatal jaundice. It can occur if high levels of bilirubin are found in the blood and body tissues of...

Shingles is a contagious viral infection that is caused by the varicella zoster virus, the same virus that causes chickenpox. This virus affects a particular nerve section, causing painful rashes on the skin connected to that particular nerve. The rash normally appears in a form of a band on any...

Introduction Chikungunya is a viral infection that is transmitted by mosquitoes. The chikungunya virus causes a sudden onset of fever along with severe joint pain. The illness is not considered as contagious, but in rare instances, the virus can get transmitted through contact with a person's...