Recently, Dalian Public Health Clinical Center admitted a 72-year-old patient who was bitten by ticks. His family members said that the patient used to be in good health. A week ago, he was bitten by a "grass crawler" while working in the fields, and later developed symptoms such as high fever and confusion. When the patient was sent to the Municipal Public Health Clinical Center, he was in critical condition and was immediately admitted to the ICU ward for treatment. Zhou Wei, the attending physician and chief physician of ICU, found that the tick that caused the disease remained on the patient's body when he was admitted to the hospital, and immediately used alcohol sealing method to remove the tick and disinfect it. After being rescued by ICU medical staff, the patient was finally out of danger.

Ticks are "walking virus reservoirs" that can cause fever with thrombocytopenia syndrome after biting. Zhou Wei said that delayed treatment is one of the main reasons for the aggravation of the disease. The incubation period of the disease is about 7-14 days. In the early stage of the disease, the onset is acute, fever, accompanied by fatigue, loss of appetite, nausea, vomiting, and some patients have symptoms such as muscle soreness and diarrhea. Therefore, many patients take medicine by themselves as a cold or diarrhea, and fail to see a doctor in time. Many patients come to the hospital 3-5 days or even longer after the onset of the disease. When seeing a doctor, patients are often in critical condition, with increased muscle tone, involuntary jitter, skin ecchymosis, gastrointestinal bleeding, pulmonary bleeding and even coma, convulsions and other neurological symptoms in severe cases, and a few patients have multiple organ failure. Zhou Wei emphasized that there is no effective vaccine to prevent the disease at present, so everyone should prevent it before it happens. Once bitten by a tick, they should pay enough attention to it and go to the hospital in time.