Yep. Made me think of MPI. Such a paranoid community as overseas embassy staff might be particularly vulnerable, https://en.wikipedia.org/wiki/Mass_psychogeni

Yep. Made me think of MPI. Such a paranoid community as overseas embassy staff might be particularly vulnerable, https://en.wikipedia.org/wiki/Mass_psychogenic_illness https://en.wikipedia.org/wiki/Mass_psychogenic_illness MPI can be difficult to differentiate from bioterrorism, rapidly spreading infection or acute toxic exposure We might need to add "sonic weapons" to that list.