Gold dimensions of pharmaceutical drug development indicate that it takes on average 11.9 years, with an investment around US$ 0.8 Billion, to launch one product on the market. Furthermore, approximately 22% of the drug candidates successfully complete clinical testing. These universally acknowledged proportions largely originate from one single, much cited publication: Dimasi et al. . However an additional six articles describing new chemical entities (NCE) development were identified, which contain little, if any, information on vaccines. Published cumulative success rates range from 7% to 78% and investments calculations span US$ 0.8 to 1.7 Billion. Obviously this disserves further clarification? (C) 2011 Elsevier Ltd. All rights reserved.