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    Ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein.


Any of a group of complex organic compounds which contain carbon, hydrogen, oxygen, nitrogen, and usually sulfur, the characteristic element being nitrogen. Proteins, the principal constituents of the protoplasm of all cells, are of high molecular weight and consist essentially of combinations of a-amino acids in peptide linkages. Twenty different amino acids are commonly found in proteins, and each protein has a unique genetically defined amino acid sequence which determines its specific shape and function. Their roles include enzymatic catalysis, transport and storage, coordinated motion, nerve impulse generation and many others.


The measure of how many organisms, or how much exposure to an organism, is required to cause disease. For instance Shigella can be caused by as little as a few bacteria, while E. Coli can require millions of bacteria to cause problems.


Vioxx is one of a new class of non-steroidal anti-inflammatory drugs (COX-2 inhibitors) that are used to treat arthritis. Formerly marketed by Merck & Co. under the trade names Vioxx, Ceoxx and Ceeoxx, it was voluntarily withdrawn from the market in 2004 because of concerns about increased risk of heart attack and stroke. Vioxx lawsuits are currently increasing.

Any of many organic substances that are vital in small amounts to the normal functioning of the body. Vitamins are found in food, produced by the body, and manufactured synthetically; along with minerals, they are known as micronutrients.

The tube that forms the passage between the cervix/uterus and the vulva. It receives the penis during sexual intercourse and serves as the delivery passage for birth and for menstrual flow.

Ventromedial Nucleus (VMN)
The part of the hypothalamus sensitive to excess glucose.


Also known as chickenpox is a mild, highly contagious disease characterised by fever and itchy blisters all over the body. It is caused by the varicella zoster virus. It is very common in children but can affect people of all ages.

Valdecoxib is a prescription drug used in the treatment of osteoarthritis, rheumatoid arthritis, and painful menstruation and menstrual symptoms. It is classified as a nonsteroidal anti-inflammatory drug, or NSAID, and should not be taken by anyone allergic to these types of medications.

Venlafaxine hydrochloride
An inhibitor of serotonin and norepinephrine reuptake, unrelated chemically to any other antidepressants, that potentiates neurotransmitter activity in the central nervous system, used as an antidepressant.

Inflammation throughout the body of the blood vessels.

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