The virus is of course entrenched in the environment, not only in China but in many other countries.
Details and logistics still have to be finalized, but the commitment is there, and it is hoped that this sharing will serve as a template for a regular virus sharing mechanism for the future.
As more outbreaks occur among poultry and animals around the world, and as more human cases occur, the virus has more chances to transmit more effectively from animals to humans, or possibly among humans as well.
It means that there is a question mark that hangs over the progress of the virus in China. It's perhaps more significant to get animal viruses, because this virus is still something that is primarily in the animal sector.
The latest outbreak of H5N1 avian influenza in poultry in China shows once again how entrenched this virus appears to be in the environment in this part of the world.