Swine influenza update – 13 countries, 367 cases
Influenza A(H1N1) – update 8.1 = World Health Organization reported 13 countries have officially reported 367 cases of influenza A(H1N1) infection. – The situation continues to evolve. As of 23:30 GMT, 1 May 2009, 13 countries have officially reported 367 cases of influenza A(H1N1) infection.