Over the past few days, there have been various reports saying that he is getting better, sitting on a chair, davening, etc. According to Kikar Shabbat it's all a lie. R' Elyashiv's condition hasn't gotten any better and he hasn't been able to sit on a chair, daven, etc.
This shouldn't surprise anyone, even when he was healthy most of the statements about/in the name of R' Elyashiv were false so why should it change now that he is in the hospital.
However, the question does have to be asked, why can't the public get accurate information from someone? R' Elyashiv means a tremendous amount to many people (so much so that people have donated years of their life to him) and everyone is being asked to daven for him so therefore the public is entitled to know what is going on. Why the secrecy?