The earliest discovery of a pathogenic microorganism was made by: (A) Augustino Bassi, (B) Pollender, (C) Oliver Wendell, (D) Louis pasteur
Answer is A. The earliest discovery of a pathogenic microorganism was probably made by Augustino Bassi(1835), showed that the muscardine disease of silkworms was caused by a fungus.Ref: Ananthanarayan; 7th edition; Page no: 1