Social Distancing

There is no scientific study that shows social distancing has any impact on containing a virus from spreading. Yet health organizations such as the W.H.O. and C.D.C. continue to issue recommendations for the public to adhere to 'safe distancing'. Most governments worldwide have not only followed these recommendations but increased them for 'safe' measure.          
One would think that an organization (W.H.O.) that is devoted to infectious diseases and health would be consistent with their advice to the public          
with respect to social distancing and COVID-19.          
How can anyone have confidence in an organization that changes its policy on a monthly and sometimes weekly basis?          
On Feb 3, 2020 the W.H.O.'s recommendation was simply to "Avoid close contact with anyone who has fever and cough".          
On Feb 29, 2020 they changed it to "Maintain at least 1 metre (3 feet) distance between yourself and anyone who is coughing or sneezing.          
On Apr 30, 2020 they then changed it to "Maintain at least 1 metre (3 feet) distance between yourself and others.           
All the while, much of the world standardized 2 metres (6 feet) as a safe distance that should be maintained!          
The six foot rule came from England. Professor Robert Dingwall, a lead researcher told the press "Officials told us they did not think the British population would understand what one meter or three feet was, and we could not trust the British people to observe it, so we doubled it to be on the safe side. The two meter rule was conjured up out of nowhere and referred to it as a 'rule of thumb' rather than a scientifically proven measure."          
So basically the six foot social distancing rule was "conjured up out of nowhere" with no scientific basis whatsoever.          
Maria Van Kerkhove, the W.H.O.’s technical lead for Coronavirus response said this about transmitting the virus:          
"From the data we have, it still seems to be rare that an asymptomatic person actually transmits onward to a secondary individual," Van Kerkhove said on Monday. "We have a number of reports from countries who are doing very detailed contact tracing. They're following asymptomatic cases, they're following contacts and they're not finding secondary transmission onward. It is very rare -- and much of that is not published in the literature," she said. "We are constantly looking at this data and we're trying to get more information from countries to truly answer this question. It still appears to be rare that an asymptomatic individual actually transmits onward."