Discover and read the best of Twitter Threads about #getvacccinated
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I lead the #SIRENStudy and have been studying the impact of prior infection with COVID-19 and COVID-19 vaccinations on immunity for more than 18 months. We have published multiple studies with collaborators. The most recent preprint is available here medrxiv.org/content/10.110… 1/6
In this pre-print, which is under peer review, we demonstrate that 2 doses of vaccination on top of prior of infection, significantly reduces both asymptomatic & symptomatic infection compared to infection alone - Table 3 - the longer since primary infection the more effect 2/6 
This is on top of the evidence provided in the original paper showing immunity 81-87% immunity with the original strains and early alpha period.... but just as immunity wanes from vaccines so it does from primary infection. 3/6
pubmed.ncbi.nlm.nih.gov/33844963/
pubmed.ncbi.nlm.nih.gov/33844963/
