San Jose Mercury News -- The World Health Organization estimates that a worldwide production capacity of 3 billion doses of pandemic H1N1 vaccines will be used to prevent the outbreak and spread of the 2009 H1N1 flu, or “swine flu,” as it is better known. This ambitious plan for widespread vaccine use, albeit inadequate for a total population of 6.8 billion people, has drawn criticism regarding the vaccine’s safety, and the use and potential use of vaccine adjuvants.