Yes. The protein is delivered. However, the payload is neutralized and removed from the body just as if the Covid is acquired in the wild. Also, if you take Nicotine via gum you block off the receptors, ACE2 so spike can't bind to them. Taking NAC binds the spike protein in the injection. https://openres.ersjournals.com/content/7/2/00713-2020 https://clinicaltrials.gov/ct2/show/NCT04583410 https://mefj.springeropen.com/articles/10.1186/s43043-022-00104-8 https://europepmc.org/article/ppr/ppr261982