Michael McNamara (Clare, Independent) | Oireachtas source

I have one other question. I do not wish to point out differences between Dr. Nabarro's personal view and the WHO guidance, but there is guidance entitled Considerations for public health and social measures in the workplace in the context of Covid-19 that the WHO published on 10 May last. This guidance states that there should be physical distancing of "at least 1 metre apart for work stations and common spaces" and: "where congregation or queuing of employees or visitors/clients might occur." Dr. Nabarro has said that 2 m is safer and 4 m is safer again. Why does the WHO say at least 1 m rather than saying at least 2 m or 4 m or that there should be no congregations indoors?