There are many categories of childhood encephalitis, and it is necessary to determine whether they are contagious according to the typology, as follows: 1. Tuberculous meningitis: If the child has combined open tuberculosis, he or she is contagious and needs to go to an infectious disease hospital or infectious disease department for consultation and treatment. If there is no combined open tuberculosis, tuberculous meningitis is not contagious; 2. Viral encephalitis: for example, type B encephalitis is transmitted through insect vectors, so if there are no mosquito bites, it is not contagious; 3. Epidemic encephalomyelitis: that is, rheumatoid encephalitis, which can be transmitted through the respiratory tract, so it is not possible to visit; 4. Septic meningitis: it is not contagious; 5. Encephalitis caused by hand, foot and mouth disease : Hand, foot and mouth disease is highly contagious and can be transmitted through the respiratory tract, contact, etc., so encephalitis caused by hand, foot and mouth disease is somewhat contagious.