Now that split is final, what if US wants to rejoin WHO?

On Thursday, HHS announced that the United States has completed its withdrawal from WHO.
The process began a year ago when President Donald J. Trump, on the night of his inauguration, announced plans to leave WHO, complaining that the agency demanded too much in funding — around $130 million per year in membership fees in 2024 and 2025, according to documents posted online by WHO.
This revoked a letter that Joe Biden sent WHO at the start of his presidency in 2021, which reversed Trump’s July 2020 announcement that the U.S. would withdraw its support.
In a joint statement, HHS Secretary Robert