The claim is that the attacks also occurred in Russia, China, and other undisclosed locations.
> I do believe Cuba's responsible. I do believe that. And it's a very unusual attack, as you know. But I do believe Cuba is responsible. [0]
Calling this unsubstantiated illness “Havana syndrome” is arguably as inaccurate and xenophobic as calling coronavirus the “China virus” or “Wuhan flu.” [1]
[0] https://en.wikipedia.org/wiki/Havana_syndrome#Impact_on_Amer...
[1] https://medicine.yale.edu/news-article/calling-covid-19-the-...