In 1937, a few years after Smith, Andrewes, and Laidlaw supposedly isolated influenza A in 1933 and after Thomas Francis Jr. supposedly isolated it in 1934, Francis Jr. once again claimed to have the direct isolation of influenza A “virus,” this time in tissue culture medium and on an egg membrane. Or at least that … Continue reading Did Thomas Francis Jr. Isolate Influenza A in 1937?