The blood test also identifies carriers of Canavan disease. In the Ashkenazi Jewish population, the detection rate for carriers using this blood test is 97%. In other populations, this test can detect approximately 66% of carriers.

Genetic counseling is available to explain how Canavan disease is inherited, to describe the tests that can identify carriers, and to help families deal with the many emotions and concerns they may have regarding Canavan disease. For information regarding counseling and/or testing please call or e-mail Erin O'Rourke, M.S., or Nadene Henderson, M.S., at (800) 334-7980,