The EMA covid-19 data leak, and what it tells us about mRNA instability

BMJ 2021; 372 doi: https://doi.org/10.1136/bmj.n627 (Published 10 March 2021)Cite this as: BMJ 2021;372:n627 Article Related content Metrics Responses Serena Tinari, journalist serena.tinari@re-check.ch Leaked documents show that some early commercial batches of Pfizer-BioNTech’s covid-19 vaccine had lower than expected levels of intact mRNA, prompting wider questions about how to assess this novel vaccine platform, writes Serena Tinari As it conducted its analysis of the