Prior to 2017, girls in Guinea Bissau vaccinated with the DTP vaccine—the flagship of Bill Gates’s GAVI/WHO African vaccine program—died at 10 times the rate of unvaccinated kids. While the vaccinated children were protected from Diphtheria, Tetanus and Pertussis, they were far more susceptible to other deadly diseases than unvaccinated peers. The vaccine apparently ruined their immune systems.