Proteins in the immune system that react to foreign antigens.
antigens
Substances, such as proteins, that can trigger an immune response, for example, the production of an antibody. The antigens of the ABO blood-group system are examples.
epidemiological
Pertaining to the study of disease outbreaks and epidemics.
melanin
The pigment largely responsible for human skin color.
melanocytes
Specialized skin cells that produce the pigment melanin.
