It was a hoax. You need multiple doses of the vaccine over a span of months for it to work. They didn't do that. http://www.scientificamerican.com/article.cfm?

It was a hoax. You need multiple doses of the vaccine over a span of months for it to work. They didn't do that. http://www.scientificamerican.com/article.cfm?id=how-cia-fake-vaccination-campaign-endangers-us-all http://www.scientificamerican.com/article.cfm?id=how-cia-fak... The misguided vaccine program in Pakistan was started in a poor neighborhood of Abbottabad, no doubt to give it an air of legitimacy. Yet after the first in a standard series of three hepatitis B shots was given, the effort was abandoned so that the team could move to bin Laden's wealthier community.