Flu vaccine Phase 3 trials with over 40,000 participants? I couldn't find one. Most are in the 15K range. As is the latest shingles vaccine trial: https://www.

Flu vaccine Phase 3 trials with over 40,000 participants? I couldn't find one. Most are in the 15K range. As is the latest shingles vaccine trial: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6590925/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6590925/ (14,759 patients who received two doses of HZ/su (n = 7,344) or placebo (n = 7,415)) So if 40,000 is "kinda untested" than this one must be complete and utter made-up then