> A study demonstrating the mechanism for Delta ADE in vivo: https://pubmed.ncbi.nlm.nih.gov/34384810/ https://pubmed.ncbi.nlm.nih.gov/34384810/ Not only is t

> A study demonstrating the mechanism for Delta ADE in vivo: https://pubmed.ncbi.nlm.nih.gov/34384810/ https://pubmed.ncbi.nlm.nih.gov/34384810/ Not only is that article not a study but rather a letter to the editor, but also in their last paragraph they explicitly state that ADE in SARS-CoV-2 has never been demonstrated in vivo. Here is the relevant quote from the letter: >[...] Although this potential risk has been cleverly anticipated before the massive use of Covid-19 vaccines6, the ability of SARS-CoV-2 antibodies to mediate infection enhancement in vivo has never been formally demonstrated. [...]