AdvertisementStealth Disease Likely To Blame For 20% Of Worldwide DeathsJanuary 16, 2020Richard HarrisfacebookEmailSepsis arises when the body overreacts to an infection, and blood vessels throughout the body become leaky. Researchers now estimate that about 11 million people worldwide died with sepsis in 2017 alone — that's about 20% of all deaths. (Universal Images Gr/Getty Images)