Methylmercury poisoning is brain and nervous system damage from the chemical methylmercury.
Minamata Bay disease; Basra poison grain poisoning
Causes, incidence, and risk factors
Methylmercury is a type of
Unborn babies and young infants are very sensitive to methylmercury's effects. Methylmercury causes
The FDA recommends that women who are pregnant, or may become pregnant, and nursing mothers avoid fish that may contain unsafe levels of methylmercury. Such fish includes swordfish, king mackerel, shark, or tilefish. (Young infants should not be given these fish, either.) You should not eat any type of these fish caught by friends and family. Check with your local or state health departments for warnings against locally caught, noncommercial fish.
Some health care providers have raised concerns about ethyl mercury (thimerosal), a chemical used in some vaccines. However, research shows that childhood vaccines do not lead to dangerous mercury levels in the body. Vaccines used in children today only contain trace amounts of thimerosal. Thimerosal-free vaccines are available.
Review Date: 01/14/2010
Reviewed By: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.