MayBee70 in regard to your post @00:12, many people are working hard to ensure, as far as practically possible, that workers are protected as they return to their employment roles.
The problem being faced is that the Covid-19 hazard has to be factored into existing risk assessments for operations already carried out in workplaces. However, Covid-19 does not produce a hazard equal to all if incurred as age, gender and other underlining health conditions will vary the possible injury to health side of any risk assessment when being compiled.
In the above, an accurate and reliable risk assessment is a very difficult and time consuming operation to carry out in very many workplace situations, and even then those assessments will not always be fully comprehensive.