This book has been written to provide quality Health Information on the Epidemiologic Approach that is often successfully used by Disease control Experts in International Occupational Health for the control of Occupational and Industrial Diseases. These ailments and infections afflict millions of people in all geographical corners and climates of the earth. The health information provided may be of special benefit to high school teachers, parents, university intellectuals, Airline and maritime Shipping Line owners and their and allied Public Health Professionals. Moreover, it may serve as an excellent companion to physicians, veterinarians, biologists, psychologists, cognitive psychologists, occupational therapists, psychiatrists, engineers, foresters,politicians, geologists, nurses, archaeologists and radiologists, among others. In addition, this educative material may be worthy reading and food for thoughts for emergency air pilots and crews, shipping captains, tourists, national defense personnel (military, naval and air force logistics experts) on field combat preparedness, miners, wild game rangers and land surveyors, explorers and National Health policy-makers worldwide.