The Worldwatch Institute reports that during the past three decades, “more than thirty previously unrecognized diseases such as Ebola, HIV, Hantavirus, and SARS have emerged as new threats. ”
Worldwatch Institute annab teada, et möödunud kolme aastakümne jooksul „on uute ohtudena esile kerkinud üle 30 senitundmatu haiguse, nagu Ebola viirus, HIV, hantaviirus ja SARS ”.