COVID-19 vaccination is associated with attenuation of inflammatory responses during breakthrough disease [small RNA-Seq]

A subset of individualsenrolledina randomised controlled trial ofChAdOx1 nCoV-19 and received either ChAdOx1 COVID-19 or control MenACWY vaccine whoexperienced COVID-19-associated symptoms were evaluated using multi-omictechnologies. Participants were selected to represent symptomatic individuals with and without COVID-19 as determined by a nucleic acid amplification test (NAAT) for stage 1 and only NAAT+ve for stage 2 of the study. Blood samples taken on theday of vaccination were compared with samples taken at onset of COVID-19 associated symptoms and 7 days later.Small RNA sequencing technology was utilised.