The 4 Deadliest Infectious Diseases In History—And How We Prevent Them

In 2013, the World Health Organisation declared antibiotic resistance was a threat to global health security. It can seem hard to believe that in the 21st century infectious diseases remain such a profound existential risk. But this declaration highlights the ever-lingering threat of infectious diseases and our dependence on antibiotics to stave off their impact on human and animal health and industry.