Here's part of the sauce. Dr. Frederick Gates was kind enough to write a research paper on his vaccine experiment. He was a Rockefeller trained doctor who performed a vaccine experiment on Kansas military recruits. Coincidentally the location and time thought by many to be the origin of "Spanish Flu"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2126288/
The "Spanish flu" is suggested to have started in Kansas.
https://www.kansas.com/news/local/article200880539.html
Something about Rockefeller trained Dr. Gate's vaccine seems to have damaged the immune systems of recipients, resulting in bacterial pneumonia.