Identify sources of biological hazard and how they affect people, including whether they spread. Consider the work environment (type of workplace, because homes may be cleaned less often but involve fewer contacts; likelihood of hazardous materials, for example in seasonal outbreaks; ventilation; crowding; workplace design with hard-to-clean surfaces or too few air exchanges); work tasks and practices (working with bodily fluids, sharps, animals, food, dust or aerosols that carry biological material, shared equipment); and possible exposures (direct contact, cleaning up fluids, breathing contaminated air, droplets or sprays, blood contact through needle stick or sharps, contaminated items such as bedding or food waste).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.