MMR is contagious because it refers to measles, mumps and rubella, which are all respiratory infections.
1. Measles is an acute eruptive respiratory infectious disease caused by measles virus. It is characterized by fever, cough, runny nose and other symptoms of catarrh, conjunctivitis and so on. In the acute stage, children can excrete a lot of viruses through the respiratory tract, and close contacts are infected by respiratory droplets. It occurs more often in winter and spring, and is highly prevalent in children aged 6 months to 5 years.
2. Mumps is a respiratory infection caused by mumps virus infection of the parotid gland. It is common in winter and spring. It is a common respiratory infection in children and adolescents. Non-suppurative inflammation of the parotid gland, swelling and pain in the parotid area are the main clinical features, and it can also invade the nervous system and various glandular tissues.
Common complications are viral encephalitis, orchitis, pancreatitis and ovaritis. Early-stage patients and those with latent infection are the source of infection. Direct contact, droplets and inhalation of saliva are the main means of transmission.
3. Rubella is an acute respiratory infectious disease caused by rubella virus, susceptible age of 1 to 5 years old mainly, rubella is a contagious viral infections, viral transmission to the air droplets as a carrier, will be infected with sneezing release of viral dissemination and spread, humans are currently the only known host.
It is recommended that patients with the above symptoms, should go to the regular hospital in time to avoid delay.