The exact sequence of what's happening here is unique.

They are in a serious condition. Their families are very concerned, and we are keeping them closely informed about their relatives' progress.

We are seeing some very early signs of improvements, but we must make it clear that because of their complex and very serious condition, it is still too early to comment on prognosis.

They are all receiving close monitoring and appropriate treatment.

Their condition remains very serious and complex, and it would not be sensible to comment on prognosis.

I am not aware of any medical foundation to the report that one of the patients may be in a coma for up to 12 months.

Two patients remain critical and four patients are serious but showing some signs of improvement.