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Subjects
- Germ Theory of Disease[remove]21
- Communicable Diseases -- etiology3
- Bacteria -- pathogenicity2
- Homeopathy2
- Vaccination2
- Amines -- chemistry1
- Bacteriology1
- Cholera -- etiology1
- Communicable Disease Control1
- Europe1
- Hygiene1
- Infections -- etiology1
- Medicine1
- Microscopy1
- Pasteur, Louis, 1822-1895.1
- Physicians -- classification1
- Sanitation1
- Specialization1
- Typhoid Fever -- etiology1
- Vaccination -- adverse effects1