MedGen

MMERV is an episodic acute reversible encephalopathy that occurs in children and is frequently associated with a trigger, such as a febrile illness. Affected individuals have impaired consciousness, delirious behavior, and/or seizures with lip smacking or eye deviation. These changes are associated with white matter lesions in the brain that often occur in the splenium of the corpus callosum, but may occur in surrounding areas. The acute phase of the disorder can be treated with steroids, and most patients make a full neurologic recovery between episodes with no sequelae (summary by Kurahashi et al., 2018). [from OMIM]

A viral respiratory infection that is caused by the MERS coronavirus (MERS-CoV), which most often manifests with moderate to severe respiratory symptoms, including productive cough and shortness of breath, which can progress to pneumonia and acute respiratory distress syndrome. [from NCI]