true, none of the other links are directly comparative to vaccine efficacy. my claim is in the context that _other_ studies show vaccine efficacy drops off after 6 months.
https://www.latimes.com/science/story/2021-11-04/study-shows...
overall im trying to make 2 points
1. many (all?) of the vaccine efficacy studies omit data for candidates who received the vaccine 6+ months prior to the time of study.
2. the vaccine is redundant for those with prior infection.