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If the English surgeon Edward Jenner had not infected to the people whit a similar to smallpox virus, the vaccines wouldn’t has created never.
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If Louis Pasteur had not studied the vaccine of smallpox virus, he wouldn’t has invented the Rabies vaccine.
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If Roux and Yersin had not discovered the Diphtheria toxin, Behring and Shibasaburo wouldn’t have experienced whit the immunity in the fluids, no in the cells.
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If Koch had not isolated the the cholera bacillus, Jaime Ferran wouldn’t has developed the vaccine against Koch's bacillus.
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If wright and Pfeiffer had not invented the typhoid fever vaccine, British soldiers wouldn’t have survived in India.
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If the veterinarian Carrille had not studied the mycobacterium tuberculosis, the BCG wouldn’t has existed.
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If Behring had not isolated the tetanus toxin, Gaston and zoeller wouldn’t have saved to the French soldiers.
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If Sellards and Laigret had not invented the Yellow fever vaccine, millons of people soldiers wouldn’t have been with live.
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If Ender Robbins and Weller had not investigated researched polio virus, Jonas Salk wouldn’t has invented the polio vaccine.
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If Enders and Peebles had not grown wild measles virus, the measles vaccine wouldn’t has been in the world.
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If the vaccine against human papillomavirus had not invented, the women would have been more cancer of cervix.
