Thus far in the history of the United States there been three Presidential impeachment proceedings -- in 1868 against President Andrew Johnson for his removal of Secretary of War Edwin Stanton in violation of the Tenure of Office Act - 1974 against President Richard Richard Nixon for the Watergate coverup (106 years after Johnson) - 1998-99 against ...
Medical entomology. The discipline of medical entomology, or public health entomology, and also veterinary entomology is focused upon insects and arthropods that impact human health. Veterinary entomology is included in this category, because many animal diseases can jump species and become a human health threat, for example, bovine encephalitis.
âEpidemiology is the study of the distribution and determinants of health-related states or events in specified populations, and the application of this study to the control of health problems.â (2). âEpidemiology is the study of the distribution and determinants of disease frequency in man.â (3). These definitions of epidemiology include several terms which reflect some of the important principles of the discipline: Study-Epidemiology is a scientific discipline and has at its foundation, sound methods of scientific inquiry.