measles

Measles (measles, rubeola, morbilli) is an acute respiratory infection caused by measles virus. The main symptoms are fever, upper respiratory tractitis, and ocular conjunctivitis, which are characterized by red maculopapular rash on the skin and measles mucosa on the buccal mucosa. The disease is highly contagious and prone to epidemics in densely populated areas without vaccines. The epidemic mainly threatens children under 5 years of age. Adults also have a pandemic in about 2 to 3 years. China has controlled the pandemic since the introduction of a live attenuated measles vaccine in China in 1965.