. @President_MU 
I recognize youve heard things like “50% sensitivity”
In light of your comments it’s clear there are key pieces youve missed
Sensitivity nears 100% to catch potential superspreaders and others currently transmitting, for example.
See
https://abs.twimg.com/emoji/v2/... draggable="false" alt="👇" title="Rückhand Zeigefinger nach unten" aria-label="Emoji: Rückhand Zeigefinger nach unten"> https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(21)00425-6/fulltext">https://www.thelancet.com/journals/...
                        
                                                
                            
                                
                                
                                
                            
                            
                        
                        
                        
                        
                                                
                    
                    
                                    
                    I recognize youve heard things like “50% sensitivity”
In light of your comments it’s clear there are key pieces youve missed
Sensitivity nears 100% to catch potential superspreaders and others currently transmitting, for example.
See
                        
                        
                        50% sensitivity is vs PCR. But as CDC (and hopefully you) know, PCR remains pos long after isolation & contagiousness end
Rapid Ag tests don’t stay positive past the infectious stage.
50% isn’t a lack of sensitivity of Ag... it’s a lack of specificity of PCR for infectiousness
                    
                                    
                    Rapid Ag tests don’t stay positive past the infectious stage.
50% isn’t a lack of sensitivity of Ag... it’s a lack of specificity of PCR for infectiousness
                        
                        
                        And importantly, public health screening w rapid tests should not detect people after they have been infectious. Simply, when you say 50% sensitivity, you’re comparing apples and oranges. 
One, a medical diagnostic. The other, a public health tool to answer “Am I infectious now”
                    
                
                One, a medical diagnostic. The other, a public health tool to answer “Am I infectious now”
                        
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