For the most part, this article is not about the 'Havana Syndrome'. What makes it interesting in the context is mainly that it seems to confirm the idea that the U.S. Foreign Service is not a good place to be - with or without the 'syndrome'. It appears to be stressful and unrewarding, i.e. to have the kind of conditions that make it more likely for cases of mass psychogenic illness to occur:
We are facing a once-in-a-generation challenge to get the U.S. Foreign Service out of its current crisis of morale and to address the many challenges before us. Those of us on active duty know that it has gotten harder and harder to serve our country and to do our jobs well, while also preserving our personal lives as well as our health and emotional well-being.
COVID-19 has hit everyone hard. But members of the Service, who must pick up and move themselves and their families to every corner of the globe, some of them quite dangerous and unhealthy, have special concerns.
From the mysterious illnesses that have hit dozens of colleagues—“unidentified health incidents,” known as Havana Syndrome—leading many FS members to fear for their health and safety when they go overseas, to the summer Centers for Disease Control and Prevention “dog ban” import restrictions that have threatened to separate so many colleagues from their beloved pets, it keeps getting harder to serve.
(...)
Applications for the State Department Foreign Service are down sharply since 2010. Too many of our overseas posts remain badly understaffed and unable to do their work properly. How can we compete in a multipolar world if we leave nearly half our ambassadorships vacant, many for years at a time?
We’re All in This Together (American Foreign Service Association, November 2021)