Besides immunizations and direct threats from employee illness, and maybe drug use, and shootings by disgruntled employees or ex-employees,do people think about the relationships between employee health and patient well being? .

One example is that if an injured worker goes immediately off the job there will be at least a short term shortage of staff, with staffing levels perhaps already being tight. There might also be a morale problem for remaining workers depending on how their colleague got hurt and what the response was. Also, workers might avoid situations in which there is an increase in perceived risk.  And no doubt other effects.

How are these effects taken into account?