This (https://www.theguardian.com/world/2011/jul/11/cia-fake-vaccinations-osama-bin-ladens-dna https://www.theguardian.com/world/2011/jul/11/cia-fake-vacci...)

This (https://www.theguardian.com/world/2011/jul/11/cia-fake-vaccinations-osama-bin-ladens-dna https://www.theguardian.com/world/2011/jul/11/cia-fake-vacci...) did not help, adding to the already severe skepticism, and eventually that skepticism led to a backlash (https://www.nationalgeographic.com/news/2015/02/150227-polio-pakistan-vaccination-taliban-osama-bin-laden/ https://www.nationalgeographic.com/news/2015/02/150227-polio...).