Hantavirus as a cause of hemorrhagic fever is not new (4). Evidence
from Chinese medical tests suggests its existence over 1,000 years ago.
In 1951–53 during the war in Korea, this virus made news when
hemorrhagic fever developed in over 2,000 United Nations troops. The
transmissible nature of the disease was first documented after serum and
urine taken from patients, then inoculated into human volunteers, produced
the infection. - VPH