The main symptoms are sharp onset, chills, high fever, sudden temperature rising to 39~41℃, lingering fever, severe headache, sometimes central vomiting, shortness of breath, tachycardia, blood pressure drop.
General treatment:patients should rest in bed and be given a liquid diet or intravenous infusion of glucose and normal saline to maintain water and electrolyte balance.
Drug therapy: symptomatic therapy, antibacterial therapy, other drug therapy.
For severe patients, routine treatment, maintenance of other important organ functions and other treatment.