Dr. David S Nourok 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...

Lupus is an autoimmune ailment. This means that instead of your body’s regular defense system attacking viruses and bacteria, it destroys healthy tissues. This causes swelling. Symptoms include extreme fatigue, hair loss, rashes, cognitive dysfunction, severe muscle and joint pain, ulcers in the...

Ringworm, or tinea, refers to a fungal infection of the skin. The term ‘worm’ is derived from the old belief that the disease was caused by a worm. The term ‘ring’ refers to the characteristic ring-shaped patches produced by the fungus on the skin. Infection is often found in the outer layer...

New research shows that a pregnant mother drinking up to two glasses of alcohol may not harm the children. About 11,500 mothers and their children participated in this study. Researchers collected data regarding the drinking habits of the mothers when the kids were about 9 months old. When the...

Most of fad diets that are popular do help in reducing body weight, but they make you feel hungry. Often, people who are on crash diets regain the weight lost once they are back on the track of their normal diet. Experts are of the opinion that one can definitely lose weight by just modifying his or...

Herpes Simplex Virus 1 (HSV-1)HSV-1 or herpes simplex virus type 1 is a type of herpes simplex virus that causes cold sores. It is called "oral herpes" because it often causes sores around the mouth or on the lips. Cold sores are also called as fever blisters. However, the sores can also be found...