(110) But 48 hours later, the remaining 24 mice all recovered, and all the germs in their blood had been eliminated. Streptococcus was defeated by penicillin in the end.

(111) Then they used staphylococcus and plenty of other pathogenic bacteria to test. Everything proved to be safe and reliable. Finally, Frawley chose a dying patient and took a trial.

(112) The patient got better with the penicillin drip, but penicillin disappeared quickly in human body. So, they had to maintain the drip treatment and extract penicillin frantically at the same time. Unfortunately, the medicine was used up before the patient was completely cured. His condition deteriorated again, and finally died

(113) It was a sad experiment, but a promising one. Small portions of penicillin were produced one after another, and finally a child was taken back from death with enough medicine.

(114) Penicillin could finally be put into production for the benefit of mankind. But in1941, Britain was under constant bombing by fascists. So Frawley and Sidley, had to cross the Atlantic to America to ask for help.

(115) They had nothing but penicillin specimen with them. They spent their days on the run, and with the help of their American counterparts, they found a place to conduct experiment and produce penicillin in Peoria, Illinois.

(116) After various experiments, they finally found a high-yielding strain on a watermelon rind. They also concocted a variety of rich nutrient foods that mold liked. With continuous improvement of the strain and nutrition, the antibacterial power of penicillin was increased by one million times.

(117) Penicillin was put into industrial production, and millions of people joined the action. Under extremely difficult wartime conditions, people gathered all available materials and built factories day and night. It was a race against death.

(118) In 1943, penicillin was mass-produced. Batches of penicillin were sent into the clinic and became a panacea. It was recognized as one of the three great inventions during the World War II, along with the atomic bomb and radar.

(119) With great achievements and a world reputation, Fleming was warmly welcomed and received. He won the Nobel Prize in medicine in 1945 and later became a professor of bacteriology at the University of London and Director of the Rhett-Fleming Institute.