what does ams stand for in medical terms
home / medterms medical dictionary a-z list / ams (atypical measles syndrome) definition Medical Definition of AMS (atypical measles syndrome) AMS (atypical measles syndrome): An altered expression of measles, AMS begins suddenly with high fever, headache, cough, and abdominal pain. The rash may appear 1 to 2 days later, often beginning on the limbs. Swelling of the hands and feet may occur. Pneumonia is common and may persist for 3 months or more.