But secondly, to incentivize that inoculation by giving a kilo of lentils to everybody who participated.

Now, some of us are old enough to have a small, circular scar on our arms from an inoculation we received as children.

Wagner JC, Berry BG, Hill RJ, Munday DE, Skidmore JW (1984) Animal experiments with MMM(V)F. Effects of inhalation and intraperitoneal inoculation in rats.

As Reverby put it, I d spent nearly two decades explaining that there had been no inoculation at Tuskegee, that while the PHS had used deplorable ethics, they had never infected anyone with syphilis. That was not true in Guatemala.

It was simply to encourage the inoculation of children by, not only making it a social event I think good use of behavioral economics in that, if you turn up with several other mothers to have your child inoculated, your sense of confidence is much greater than if you turn up alone.