Grammar:"Biologists recreated a virus responsible for the 1918 flu pandemic (also called the Spanish Flu) [wiki], which caused some 50 to 100 million people in just two years, from tissue samples gathered from corpses." Abusive comment hidden. (Show it anyway.)
"Biologists recreated a virus responsible for the 1918 flu pandemic (also called the Spanish Flu) [wiki], which caused some 50 to 100 million people in just two years, from tissue samples gathered from corpses."