This virulent pandemic killed more people worldwide than all of WWI.
In November 2002 physicians in Southeastern China began to see cases of what came to be known as SARS - severe acute respiratory syndrome.
A massive influenza pandemic which quickly enveloped most of the world within six months.
US CDC estimated that 151,700-575,400 people worldwide died from this influenza
The 1968 flu pandemic resulted in an estimated one million to four million deaths.
As of February 11, 2021 COVID-19 has killed almost 2.4 million globally.