Informative document periodically prepared with the aim of bringing the reader the main features of the NHS and provide a quick reference of their most important facts and figures.

Website of the National Library of Medicine (NLM, National Library of Medicine) of the United States containing all the presentations online from 1986 to the present.

www.gripeinfo.orgof the Fundació Josep Laporte offers access to resources of accredited institutions that meet the doubts and / or most common questions that may arise in influenza A in daily life: at home, at work, travel, etc. It also provides access to selected information resources produced by the different autonomous regions, as well as nationally and internationally.