What Causes Bell's Palsy?
3. Cytomegalovirus
Cytomegalovirus is nother viral infection that can cause Bell's palsy. It Cytomegalovirus affects as many as 80 percent of adults in the U.S. before age 40.
This virus can cause several complications, including Bell's palsy, and immunocompromised people are at greater risk. It cycles through periods of latency and activity, something that scientists believe may lead to the disorder.
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