After infection with the rubella virus, the disease that develops is rubella. The rubella virus can be transmitted through ordinary airborne droplets and respiratory routes, and it can also be transmitted through close contact between people. The typical clinical symptoms include fever, a rash all over the body, and swelling of the lymph nodes behind the ears and at the back of the head. The clinical symptoms are relatively mild, the course of the disease is short, and the prognosis is good. However, if a pregnant woman is infected during the early stages of pregnancy, it can lead to severe consequences such as fetal deformities. In terms of treatment, it mainly involves symptomatic treatment and rest, with most people fully recovering in about two weeks.