Swine Influenza : The situation continues to evolve rapidly

The situation continues to evolve rapidly. As of 22.35 (UTC), 30 April 2009, 13 countries have officially reported 276 cases of influenza A (H1N1) infection.
Number of countries with confirmed or suspected cases = 43.
Source :

http://en.wikipedia.org/wiki/Swine_flu_2009#cite_note-WHO_update_5-13