"Science" ?
Sounds more like a coverup than Science. The probability of multiple persons experiencing the same pschosomatic symptons at the same time in the same place are essentially none. There is most likely a comon external cause which a Scientist would investigate without bias or jumping to an unsupported accusatory conclusion.
Assuming the unknown cause was an intentional act, we ought to be able to agree that the perpetrator conducted a malicious attack, and we ought to think about what the acceptable limits are for the unknown cause, to restrict it's weaponisation.