The November 19, 2018, issue of The New Yorker has a lengthy article about the medical problems experienced by some U.S. diplomats in Cuba starting in late 2016 (and after the U.S. presidential election). [1]
The conclusion, however, is the same as previously reported: some U.S. personnel did suffer injury and the U.S. Government has publicly stated it does not know the cause or perpetrator of these injuries.[2]
But the article does provide greater details about many of the victims having been CIA agents and about the U.S.-Cuba interactions over these incidents.
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[1] Entous & Anderson, Havana Syndrome, New Yorker at 34 (Nov. 19, 2018).
[2] See posts listed in the “U.S. Diplomats Medical Problems in Cuba, 2017-18” section of List of Posts to dwkcommentaries—Topical: CUBA.