Far Eastern hemorrhagic fever

Far Eastern hemorrhagic fever

a form of epidemic hemorrhagic fever, indigenous to Asia, that is transmitted by a virus carried by Asian rodents and causes hemorrhagic fever with renal syndrome. The infection is characterized by four phases: febrile phase, hypotensive phase, oliguric phase, and polyuric phase. Hypotensive shock may occur as the fever subsides. Thirst continues into the second week, oliguria develops, and the blood pressure returns to normal. Blood urea nitrogen levels increase hyperphosphatemia and hypercalcemia, and other complications occur. Diuresis follows the oliguric phase, generating an output of as much as 8 L a day of urine and causing electrolyte imbalance. The mortality rate may be as high as 33%. There is no specific treatment.
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