AbstractHuman H1N1 pandemic developed from the originally localized Mexican source early in the spring 2009. For the emergency created by the epidemic of influence of the pigs in Mexico it was correct not to create alarmism being victims of bad information. Cytokine storm should be mentioned as one of the key pathogenic events contributing to the overall mortality in substantial portion of patients. If active immunization is assumed to be preventive measure of proven efficacy, clinicians are ...