Viral

A micro-organism which invades living cells in order to grow or reproduce. Viruses cause many infections, from the common cold, chickenpox and measles to HIV.

A viral infection (also called herpes zoster, varicella or varicella zoster). If a pregnant woman catches chickenpox, it may cause problems for her baby.

A viral infection which attacks the body’s immune system, making it hard to fight off other infections. HIV is passed through contact with body fluids (blood, semen, vaginal fluid…

An antibody is a protein molecule that can bind to a virus and mark it for destruction by the immune system. A monoclonal antibody is a man-made substance used to treat some viral…