from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of a group of viruses carried by rodents that cause epidemic hemorrhagic fever and severe respiratory infections in humans.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any virus of the genus Hantavirus, transmitted by aerosolized rodent excreta or rodent bites
After the Hantan River, South Korea (near which Westerners were first infected by the virus in the 1950s).(American Heritage® Dictionary of the English Language, Fourth Edition)
From the name of the Hantan River in South Korea, via the genus name Hantavirus. (Wiktionary)