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by mrb 2850 days ago
Your link is the first time I hear of mass psychogenic illness. Quite an interesting phenomenon. I particularly liked the case below from 1972. It seems MPI could very well explain these incidents.

«In a mid-western university town of over 50,000 population, a strange case of "gas poisoning" occurred on a Wednesday morning early in March, 1972. Approximately thirty-five female workers at the University's data processing center were exposed to a mysterious gas "from an unknown source" that caused dizziness, vomiting, nausea, and fainting among a number of the employees. So severe were the symptoms that 10 of the workers were taken to the University's Medical Center for emergency treatment; all of the employees at the Data Center were evacuated.

The Center was temporarily closed allowing for a group of environmental specialists to examine the building. During the remainder of that day and into the night, samples of the air obtained from the building were tested. Extensive blood and urine tests of affected workers were conducted in order to locate traces of the noxious "gas." Although traces of the substance could not 'be found, several workers again became ill upon returning to work Thursday morning. The Data Center was closed and evacuated for the second time. Additional environmental ;and physiological tests were conducted; still no physical reason for the episode could be located.

When the Center resumed operation on Friday a group of specialists from the University met with the workers to explain that they thought an "atmospheric inversion" was the cause of their symptoms. This explanation was calculated to reduce the high level of anxiety that had surrounded the activities of the two previous days; the explanation seemed to meet its objective. The incident was "closed" as far as both the workers and the scientists were concerned despite the fact that traditional biomedical explanations had failed to explain the events.»

See more at https://sci-hub.tw/10.2307/2136925

3 comments

Mass psych illness is brought up everytime this is discussed
Indeed:

https://www.theguardian.com/world/2017/oct/12/cuba-mass-hyst...

But that doesn't make it neccesarily true, see my other comment here, in context with the comment I responded to there:

https://news.ycombinator.com/item?id=17894909

If you're interested in MPIs have a look at the Tanganyika laughter epidemic. It extends to a whole country.
Doesn't this contradict the notion that these diplomats experienced mass psychogenic illness?

What you describe is a temporary disturbance highly susceptible to (and terminated by) the power of suggestion, no? It sounds like what the diplomats experienced is different in both respects.