Could It last 3 Years?

The Spanish Flu killed between 50 to 100 million people with a casualty fatality rate (CFR) of 5%

World War I killed between 15 to 30 million people.

The Plague of Athens in 430 BC killed 75 to 100 thousand humans

The Antonine Plague from 165 to 180 A.D. killed 5 million people

The Justinian Plague from 541 to 549 A.D. killed 25 to 100 million people

The Black Death from 1346 to 1353 A.D. killed 75 to 200 million people

The Russian Flu from 1889 to 1890 killed 1 million people

The 1957 flu killed 1 to 2 million with less than 1% CFR

The Swine Flu killed 200,000 people with a CFR of less than 1%

The H1N1 flu killed 200,000 people with less than 1% CFR

MERS killed 850 humans with a 30% CFR

SARS killed 770 people with a CFR of 10%

Ebola has killed 11,300 people with a CFR of 50%

The seasonal flu kills between 200,000 to 500,000 thousand humans with a CFR of less than 1%

The Chinese Communist Party Virus (CCV) or Wuhan Virus (WV) has killed 700,000 people worldwide; the CFR worldwide has yet to be accurately measured; see the second link below 

https://www.youtube.com/watch?v=eQJteHRyclI

https://coronavirus.jhu.edu/data/mortality