According to this:
The rumour mill surrounding the health of Fidel Castro is churning despite a letter from the ageing Cuban revolutionary published by state media and denials by relatives at home and in the United States that he is on death's door.Anyway, it appears that the good doctor does make mistakes:
Social media sites and some news organisations have reported allegations by a Venezuelan doctor that the 86-year-old suffered a massive stroke, was in a vegetative state and had only weeks to live. The same doctor, Jose Rafael Marquina, has made claims before that have not proven to be correct.
In April, Dr Marquina said that Mr Chavez, who has been battling a kind of cancer, was in his "last days" and would not last to November.On the other hand, it's not November yet, and who knows? Besides, the doctor made another point:
...the doctor also said Venezuelan president Hugo Chavez had travelled suddenly to Havana to be with his friend and ally.Possibly to secure a place on the same boat to the other side of the Styx? Could be a good idea.
I am not holding my breath, whatever is left of it, in any case.