Mumps is contagious and is mainly caused by viral mumps, also known as epidemic mumps. It is caused by the mumps virus, an acute respiratory infectious disease, and is mainly transmitted through droplets. The main patients are school-age children. The contagious period of mumps is generally about 2 to 3 weeks, during which it is highly contagious and requires isolation and treatment. Since the viral infection in the patient's body starts a few days before the symptoms appear, and is contagious until the swelling of the parotid glands subsides, isolation is advisable within 2 to 3 weeks.