That's something that I had suspected and voiced in this thread here...
Castro hands power over to brother
Translated by The Miami Herald
I cannot invent good news, because that wouldn't be ethical. And if the news were bad, the only one to benefit is the enemy.
... the state of my health becomes a state secret that cannot be divulged constantly, and our compatriots must understand that.
... the situation is stable,
... the situation will remain stable for many days before a verdict can be delivered.
... in the country everything goes on and will go on perfectly well. The country is prepared for its defense by the Revolutionary Armed Forces and the people.