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Continent Africa / / Country United States / / IndustryTerm surgical tools / bacteria-killing chemical / chemical reaction / doctor’s tools / similar chemical / food / energy / sterile tools / treatment of choice for diseases / weakened immune systems / food preparers / chemical called carbolic acid / chemicals / / MedicalCondition allergies / allergic reaction / supercontagious and deadly Ebola / HIV / contagious disease / common cold / hives / chicken pox / rabies / diphtheria / nausea / severe acute respiratory syndrome / food poisoning / herpes / cold sores / control diseases / dysentery / drowsiness / multiple sclerosis / polio vaccine / human diseases / diarrhea / illness / infections / common diseases / influenza / common fungal infections / few human diseases / Fungal infections / blisters / disease / malaria / SARS / typhoid fever / Smallpox virus / itching / fever / contagious diseases / diseases / Allergic reactions / foot infections / cholera / AIDS / severe hives / infection / anthrax / inflammation / joint pain / infectious disease / yeast infections / / MedicalTreatment antibiotics / surgery / / Person Alexander Fleming / Girolamo Fracastoro / LOUIS PASTEUR / Ronald Ross / Howard Florey / Robert Koch / JOSEPH LISTER / / Position physician / scientist / biologist / athlete / surgeon / chemist / / Product penicillin / Not / ciprofloxacin / / Technology antibodies / genetic code / / SocialTag 
Part 2: So, What’s Changed? Then and now As you can see, things are a lot better than they used to be—at least for most people in the United States and other industrialized countries. Of course, the