On June 11, 2009, the World Health Organization(WHO) signaled that a global pandemic of novel influenza A (H1N1) was underway by raising the worldwide pandemic alert level to Phase 6 This action was a reflection of the spread of the new H1N1 virus, not the severity of illness caused by the virus. At the time, more than 70 countries had reported cases of novel influenza A (H1N1) infection and there were ongoing community level outbreaks of novel H1N1 in multiple parts of the world.
The ESICM is pleased to support the H1N1 Registry for critically ill patients with novel influenza A (H1N1) virus. It hopes to be able to collect sufficient data to aid future planning and understand management plans for these patients.