An immune reaction resulting from contact with products derived from the rubber tree, Hevea brasiliensis, or the chemicals added to latex during the manufacturing process. Latex antigens can be absorbed through the skin or inhaled. The allergic reaction may be relatively mild (marked by rashes or reddened skin) or more severe (rhinitis, hives, bronchospasm, or anaphylaxis). In health care workplaces, where standard precautions against contact with blood and body fluids have made the wearing of protective latex gloves common, nonlatex products have been substituted for latex barriers to reduce exposure. A nonallergic contact dermatitis caused by the irritation of powders used in the gloves may be mistaken for a true latex allergy and is much more common.