Outbreak history on September 15

Historical outbreak-response milestones recorded on this calendar date, drawn from WHO Disease Outbreak News, CDC archives, and primary epidemiological literature.

• 1995

  Hantavirus

  Andes virus discovered in Argentina

  Argentine researchers in El Bolsón, Río Negro Province, isolated a hantavirus distinct from Sin Nombre virus from HPS patients. The new virus was named for the mountain range running through its endemic region. The following year, a cluster of cases in physicians who had treated index patients in Buenos Aires would provide the first evidence of person-to-person hantavirus transmission.

Browse the full outbreak history calendar for milestones across all dates.