The Weekly Epidemiological Record (WER) for 24 February 2012, vol. 87, 7 (pp 65–72) includes WHO Quantitative Immunization and Vaccine-Related Research meeting, October 2011 – summary; Dengue and severe dengue factsheet (Revised in January 2012)

http://www.who.int/entity/wer/2012/wer8708.pdf