> AZ "is responsible" for the serious adverse effects (not blaming them - it is most likely due to poor application method and the vaccine getting into the bloo

> AZ "is responsible" for the serious adverse effects (not blaming them - it is most likely due to poor application method and the vaccine getting into the bloodstream) The AZ vaccine has been reported to contain protein impurities: https://www.chemistryworld.com/news/protein-impurities-found-in-astrazenecas-covid-19-vaccine-stir-debate/4013844.article https://www.chemistryworld.com/news/protein-impurities-found... Although no causal link to adverse effects has been established yet.