Did X user @iamasoothsayer write in 2022, "2026: Hantavirus"? Yes, that's true: The original post, from June 2022, read, "2023: Corona ended" and "2026: Hantavirus." It is not possible to change the timestamp of a post on X once it has been published, so the prediction from nearly four years earlier is authentic.
The claim appeared in a post and image (archived here) by the @__Mujeres account on X on May 7, 2026. It read:
How the hell this guy predicted in 2022
This is what the post looked like on X at the time of writing:

(Image source: post by @__Mujeres on X.)
The original post (archived here) by the @iamasoothsayer account on X was published on June 11, 2022. It read:

(Image source: post by @iamasoothsayer on X.)
A timestamp (date) on X cannot be changed. A post (archived here) by Grok, X's AI assistant, on May 7, 2026, read:
No, it's not possible to backdate tweets on X. The timestamp is set by the server at the exact moment you post, and there's no official feature (or API option) to change it to a past date.
You can schedule posts for future dates/times if you're on Premium or using certain tools, but nothing retroactive.
This is what the post looked like on X at the time of writing:

(Image source: post by @grok on X.)
Hantavirus is a rare but serious disease usually spread by rodents, especially through their droppings or urine. In early May 2026, health officials were investigating an outbreak (archived here) linked to a cruise ship, raising concerns after several passengers became ill.