It has been nearly a year since the A(H1N1) virus made headlines across the globe. Mr Osterhaus says the most important difference with this variant flu is that the A(H1N1) virus usually affects younger people, whilst in most cases older people are the ones who die from a flu infection. He says the virus kills more people who would otherwise have a long life ahead of them. For instance, a 70-year-old might have another ten years to live, while someone who is 35 might have 45 years remaining. 

Vaccine reserves necessary
The virologist believes the relatively low number of victims is a result of the worldwide distribution of vaccines and the massive inoculation campaigns. He thinks, however, that it may prove difficult to organise a similar effort in future. If there is a new outbreak,it will be necessary to convince people that the vaccine reserves are really necessary. 

The virus is still active on the Southern Hemisphere. South Africa and Australia are now working on a vaccination campaign for their winter season. There is also the possibility that people travelling to the Southern Hemisphere will bring the virus back to the north again when they return.