What is pandemic influenza

Influenza viruses are changing continuously and new strains emerge from time to time. If a new influenza virus subtype, that is very different from all previous viruses, emerges and causes disease in the human population, people will have little or no specific immunity to it, and consequently this virus may spread quickly and become a […]

The Mexican flu: a pandemic

The clinical manifestations of the ‘Swine flu’ were relatively mild by the end of May 2009 and reminiscent of what is normally seen in seasonal influenza. Yet, a higher percentage of gastro-intestinal symptoms was observed and many severely affected people were in relatively young age categories with an overall peak between 25 and 50 years. […]