@CNN: The spread of the plague during the Black Death that killed millions was fueled by humans, not rodents, as previously believed, a new study has found https://t.co/xZWlpjXRR9 https://t.co/tg4QcxdRIk
The spread of the plague during the Black Death that killed millions was fueled by humans, not rodents, as previously believed, a new study has found https://t.co/xZWlpjXRR9 http://pic.twitter.com/tg4QcxdRIk
— CNN (@CNN) January 17, 2018