Tbh, I doubt he has an injunction. Often, if someone is sick, journalists will just skirt around it. For example, I knew Helen McCrory was dying, a relative worked on Peaky Blinders, and I know the press knew too. They just left it alone even though it was an open secret since pre Christmas 2020
Or someone like Simon Cowell, with a v good and massive PR team, can just say to the papers “we’ll give you more access to X & Y if you leave Z alone”. You see it a lot during scandals too, although that’s more of a threat -“if you print that about A, we will withdraw access to B, C & D”