Vaccination.
Virology is bunk. The observations are real but the interpretations are pseudoscience.
I am thoroughly convinced vaccination, all vaccination; from yellow fever in WW2 and polio in the 1950s right through to today, is, in reality, clandestine medical experimentation on the population with the aim of furthering an understanding of human biology.
You've got to feek around to find out and "they" would never be able to get away with doing the experiments openly. So its hidden in the concept of vaccination.
You don't have to dig very deep to see it. Its right there.
https://stream.gigaohm.bio/c/gigaohm_biological/videoshttps://stream.gigaohm.bio/c/housatonic/videos
