Research, visit the CDC web site at CDC.GOV, and investigate the risks associated with the handling of certain substances and chemicals that one encounters in their daily lives.
Elizabeth W. Etheridge (1997), in an article appearing in the Journal of Environmental Health, said:
Among the 10 nationally notifiable infectious diseases that are most commonly reportable today, several were unknown in June 1946. The 10 most frequent nationally reportable infectious conditions in 1994 (the most recent year for which final data are available) were, in descending order, gonorrhea, acquired immunodeficiency syndrome (AIDS), salmonellosis, shigellosis, hepatitis a, tuberculosis, primary and secondary syphilis, Lyme disease, hepatitis B, and pertussis (5). Fifty years ago, AIDS and Lyme disease were unknown. "Infectious hepatitis" (subsequently identified as hepatitis a) had just been identified, and morbidity reports for this condition first appeared in 1947. In 1953, serum hepatitis (subsequently named hepatitis B) was recognized as a separate entity, although it was included in the general category of hepatitis until 1966, when infectious and serum hepatitis began to be reported separately. Other diseases reported on a weekly basis during 1946 included...
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