• A 2020 study analyzed an Andes hantavirus outbreak in Argentina in 2018-2019 with 34 infections and 11 deaths.
  • It confirmed the existence of super-spreaders and human-to-human transmission, with a transmission rate of 2.12.
  • The first transmission occurred at a birthday party with about 100 guests, where patient zero infected five nearby people.
  • One infected partygoer was a super-spreader who infected six others before dying.
  • After voluntary isolation was recommended, the transmission rate dropped to 0.96, ending the outbreak.
  • The WHO linked the MV Hondius outbreak to the Argentine one and urged contact tracing and isolation.