Bergey's Manual of Systematic Bacteriology classified the organism as bacterial in 1939, but the disease remained classified as a fungus in the 1955 edition of the Control of Communicable Diseases in Man.
Bergey Manual of Systematic Bacteriology klassificerade organismen som bakterie 1939 , men sjukdomen förblev klassificerad som en svamp i 1955 års upplaga av Control of Communicable Diseases in Man.