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Discovering penicillin is a very important moment in the history of medicine. This antibiotic helped to cope with many diseases that were considered to be deadly diseases many years ago. It was discovered by Sir Alexander Fleming in 1928. In 1941, one of the Oxford hospital doctors, Charles Fletcher used some penicillin on the patient, and the wound made a spectacular recovery. Unfortunately, Fletcher did not have enough penicillin to fully rid the patient’s body of bacteria, and he died a few weeks later as the bacteria took a hold.

What statement is false, according to the text?

• Penicillin was the only antibiotic that killed all germs.
• Penicillin was used by Alexander Fleming as an antibiotic for healing wounds.
• Charles Fletcher used penicillin in his therapeutic practices.
• An insufficient dose of penicillin caused the death of one of Fletcher's patients.