Unfortunately very few - any? - studies that I’ve seen relating viral load to outcome stratify by day post infection or symptom onset. This is big issue (viral load varies by day and people vary in when they get tested in disease course for many reasons). nytimes.com/live/2020/12/2…
For example, here’s data from my lab showing viral load by day for outpatients (purple) vs hospitalized patients (green). All tests were on presentation. If you just look at viral load on presentation, outpatients were higher - they were just tested earlier. 
H/t to @Kalee_Rumfelt in my lab who did the chart review. Most studies don’t have day post symptom onset because it’s hard to retrieve. You typically don’t get it in data pulls from EMR. You have to go into chart notes one by one.
My UMich colleagues in ID hear me rant about this a lot so I will tag them here so they can see rant + data from our system ;)
@kevingreggmd @lindsay_petty @jbaang @Tejal_N_Gandhi @jpogue1 @Payal_Patel
@kevingreggmd @lindsay_petty @jbaang @Tejal_N_Gandhi @jpogue1 @Payal_Patel
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