A.the intensity of the activity
CDC; Center's for Disease Control and Prevention, a US organization that keeps statisitics, research, data on diseases, injuries, and the like.
OSHA; Occupational Safety and Health Administration, an government organization responsible for maintaining a setting regulation for the health and safety of the US workforce.
FDA; the Food and Drug Administration, a government organization that sets standards and regulations for food and the development of drugs.
USDHHS; the government organization that works at the cabinet level and controls much of the nations Healthcare.
NIH; National Institute of Health one of the foremost research organizations in the US.
WHO; a global organization run by the UN. It is responsible for coordinating global research, awareness, prevention, of diseases and injuries.
They are often targets because they don't fight back, they often provoke their aggressor.
