Did Swank et al.'s research show us that persistent circulating COVID spike is associated with post-acute COVID-19 sequelae? Spike from virus and spike protein induced from the mRNA vaccine? Yes!

a preprint paper uploaded to medRxiv in June a fragment of SARS-CoV-2 (thus possible intack vaccine spike) in blood samples from long COVID sufferers up to a year after their original infection.

https://www.medrxiv.org/content/10.1101/2022.06.14.22276401v1

Researchers ‘analyzed plasma samples collected from a cohort of PASC and COVID-19 patients (n = 63) to quantify circulating viral antigens and inflammatory markers’….’they detected SARS-CoV-2 COVID spike antigen in a majority of PASC patients up to 12 months post-diagnosis, suggesting the presence of an active persistent SARS-CoV-2 viral reservoir.’

‘Furthermore, temporal antigen profiles for many patients show the presence of spike at multiple time points over several months, highlighting the potential utility of the SARS-CoV-2 full spike protein as a biomarker for PASC.’