Vitamin A (retinol) is an important fat soluble vitamin for good vision, healthy immune system and cell growth. Eggs, milk, liver, cereals are the foods rich in vitamin A. Vitamin A deficiency causes night blindness.

Acquired Immuno Deficiency Syndrome or hiv/253657?iL=true" >AIDS is a condition that is caused by the Human Immuno Deficiency Virus or HIV which leads to serious destruction and loss of a person?s ability to fight with a infection. In few years slowly a person?s immune system will be unable to fight against infections and various infective agents will conquer over the immune system easily and a person will face a numerous complications due to that.

Poliomyelitis is a disease caused by infection with the poliovirus. The virus spreads by direct person-to-person contact, by contact with infected mucus or phlegm from the nose or mouth, or by contact with infected feces. The virus enters the mouth and multiplies in lymphoid tissues in the pharynx and intestine. Small numbers of virus enter the blood and go to other sites where the virus multiplies more extensively.

Arthroscopy is a surgical procedure used to visualize, diagnose, and treat problems inside a joint. An arthroscope is a telescope that can be inserted into the joints, enabling to see directly inside the area. Two small stab wounds are made on either side of the front of the knee. One is for the telescope, the other is either for an examining probe, or the instrument used to perform arthroscopic surgery.

Abruption placenta or abruption of placenta is premature separation of placenta from the uterus before delivery of the fetus.