http://www.thelancet.com/H1N1-flu

This hot site is the result of a collaborative effort by the editors of over 40 Elsevier-published journals and 11 learned societies who have agreed to make freely available on this site any relevant content. All papers have been selected by a Lancet editor, grouped by topic and fulltext pdfs made available to download free of charge. It includes information on various aspects of the disease such as diagnosis, epidemiology, immunology, pathology, prevention, surveillance, treatment, vaccines, virology and others.