Rapid hearing loss in both ears may be a symptom of the rare but always-fatal Creutzfeldt-Jakob Disease and should be considered a reason for clinicians to test for the disorder.

Link: http://www.sciencedaily.com/releases/2013/03/130314085532.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fhealth_medicine%2Fhearing_loss+%28ScienceDaily%3A+Health+%26+Medicine+News+--+Hearing+Loss%29