Answer
No. It contains mRNA instructions rather than live coronavirus, so it cannot cause COVID-19 infection.
Sources for this answer
- Comirnaty LP.8.1 30 microgram/dose dispersion for injection in pre-filled syringe — 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.