ABSTRACT
Smallpox, diphtheria, polio, measles—conquered through immunization. Tuberculosis, leprosy, plague, yellow fever, malaria—defeated or checked by sanitation, improved living conditions, and effective treatment.
Smallpox, diphtheria, polio, measles—conquered through immunization. Tuberculosis, leprosy, plague, yellow fever, malaria—defeated or checked by sanitation, improved living conditions, and effective treatment.