So this from the NFL's top doc.  It's the SYMPTOMATIC driving the spread, not the other way around.
		
			
				
					
						 
					
				
			
			
				
					
						
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			NFL chief medical officer: Symptomatic players driving COVID-19 spread; no indications of asymptomatic spread
 
					
				NFL: Symptomatic players driving COVID spread
The NFL is basing its new COVID-19 protocols on data that shows the virus is being spread overwhelmingly by symptomatic individuals.
				 
				 
 
		 
 
		 
					
				 
						
					 
					
				

 
 
		
 
   
 
		 
 
		 
 
		 
 
		 
	 
 
		