We have conducted a daily longitudinal analysis of SARS-CoV-2 vaccine breakthrough infections in two universities, UIUC and NU. We compared viral culture outcomes with nasal and saliva PCR results for up to 15 days and this is what we found. A thread 
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Replying to @PamelaPMartinez
Superb article and work!! I’m sure it’s been said by others - it’s important to point out that this is not Delta. We are seeing remarkable transmission among fully vaccinated groups. I believe we will find higher transmissibility of Delta in Vax’d than Alpha in unvax’d.
14 replies 27 retweets 254 likes -
Replying to @michaelmina_lab @PamelaPMartinez
I don't think Iceland epi curve looks like that at all? (Comparing vaxxed delta to unvaccinated alpha).
2 replies 0 retweets 11 likes -
Testing confounder? I have no idea if Iceland is doing full pop surveillance? Clearly severity better w vaxxed Delta vs unvax alpha.
1 reply 0 retweets 1 like
Regular, mundane COVID surveillance in Iceland is better than what people like us in surveillance wastelands call "studies".
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