SARS,MERS, AND BLACK DEATH
SARS
1 Severe acute respiratory syndrome-related coronavirus
Virus.Severe acute respiratory syndrome-related coronavirus is a species of coronavirus that infects humans, bats and certain other mammals. It is an enveloped positive-sense single-stranded RNA virus that enters its host cell by binding to the angiotensin-converting enzyme 2 receptor.
MERS
2 Middle East respiratory syndrome-related coronavirus
VirusMiddle East respiratory syndrome related coronavirus, or EMC/2012, is a species of coronavirus which infects humans, bats, and camels. The infecting virus is an enveloped, positive-sense, single-stranded RNA virus which enters its host cell by binding to the DPP4 receptor.
BLACK DEATH
3 The Black Death, also known as the Pestilence and the Great Mortality, was the most fatal pandemic recorded in human history, resulting in the deaths of up to 75–200 million people in Eurasia and North Africa, peaking in Europe from 1347 to 1351.
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