The WHO continues to issue regular updates posted on the WHO main page, as well as other advisories linked from that page. Here is the current update:
Influenza A(H1N1) – update 41
29 May 2009 — As of 06:00 GMT, 29 May 2009, 53 countries have officially reported 15,510 cases of influenza A(H1N1) infection, including 99 deaths. http://www.who.int/csr/don/2009_05_29/en/index.html

The Weekly Epidemiological Record (WER) 29 May 2009, vol. 84, 22 (pp 197–212) includes: Considerations for assessing the severity of an influenza pandemic; Estimating the global burden of foodborne diseases: a collaborative effort; Monthly report on dracunculiasis cases, January–April 2009
http://www.who.int/wer/2009/wer8422.pdf