"COVID-19, SARS, Swine Flu, MERS, 1918 Spanish Flu, and even the Black Death originated in China."
okay lest take this case by case
COVID-19 originated in bats first infection was in "wuhan china" Sars to quote WHO" first infected humans in the Guangdong province of southern China in 2002." Black Death originated in China and Inner Asia Right Now it seems you are right But Now it will start fall apart Swine Flu I Couldnt Find a Starting Point it just have things like probably meaning its not Certain MERS was first identified in Saudi Arabia in 2012. its even in its name Middle East respiratory syndrome coronavirus 1918 Spanish Flu's first known case was reported at a military base in Kansas on March 11, 1918.