Although vaccine ingredient lists have been released by the various manufacturers, only Moderna has specified excipients quantities.
According to Dr. Sherri Tenpenny, 3 of the excipients used in the Pfizer vaccine have never been used in a previously approved vaccine. It is unknown whether they have been tested for synergistic toxicity or allergic reactions.
Dr. Sherri Tenpenny also mentions that the Moderna patent states that a second mRNA may be present in the vaccine (as well as the SARS-CoV-2 mRNA). This second mRNA encodes for the protein ‘flagellin’. This is an unapproved vaccine adjuvant used to stimulate the cytokine (inflammatory) response of macrophages.
Chemicals called ‘polyethylene Glycol’ (PEG) are present in both the Moderna and Pfizer vaccines and are known to induce serious allergic reactions, including anaphylactic shock. These could be responsible for instantaneous adverse reactions – possibly fatal – in a great number of people (70% of people develop antibodies against PEGs). In fact, anaphylaxis has been reported a lot more frequently for these vaccines than for other vaccines.
Please note that the WHO does not recommend the vaccines to people with a history of severe allergies.