TOPICS: Measles, paramyxovirus, RNA virus, negative sense, retinol, vitamin A, live vaccine, linear virus, cough, fever, maculopapular rash, spreads downwards, encephalitis, Koplik spots, subacute sclerosing panencephalitis, coryza, conjunctivitis, helical capsid, fused lymphocytes, Warthin-Finkeldey, lymph node hyperplasia, giant cell pneumonia, immunocompromised,
