Answer
It is propagated in MDCK cells, and egg protein is not listed in its composition or possible trace residues. Disclose all relevant allergies before vaccination.
Sources for this answer
- Cell-based Trivalent Influenza Vaccine Seqirus — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.