[thulle]

> The embassies actively sprayed in offices, as well as inside and outside diplomatic residences — sometimes five times more frequently than usual. Many times, spraying operations were carried out every two weeks, according to embassy records.

> There was also a correlation between the individuals most affected by the symptoms and the number of fumigations that were performed at their residence.

So, overexposure to nerve agents both in their homes and at work? Sounds like something decently easy to prove that it has occurred for most affected, and something that should be covered as some kind of work injury. I assume living quarters were provided by the employers.