The Weekly Epidemiological Record (WER) for 12 March 2010, vol. 85, 11 (pp 93–108) includes Progress towards eradicating poliomyelitis in Afghanistan and Pakistan, 2009; Antigenic and genetic characteristics of influenza A(H5N1) and influenza A(H9N2) viruses and candidate vaccine viruses developed for potential use in human vaccines – February 2010

http://www.who.int/wer/2010/wer8511.pdf