Thirty years after first person-to-person transmission was documented in Patagonia, scientists say global heating could increase world’s exposure

An outbreak in rural communities 30 years ago in the Patagonia area of Argentina led scientists, for the first time, to document person-to-person transmission of hantavirus, which until then had been known only to spread through contact with rodents.

Nearly a decade ago another outbreak, also in Patagonia, provided detailed evidence of inter-human transmission when an infected 68-year-old rural worker attended a birthday party in a small village. The infection spread and resulted in 11 deaths.