Due to their nature and sporadic manifestations, they are currently unable to be contained.
I advise against using the word "their" or "they" when describing the object. It can lose its clinical tone. Use "RPC-147" or "RPC-147-1" in its place.
t is notable that disappearances among the Iñupiat peoples are not totally uncommon, and that these disappearances increase during a small period after a Husk Event.
Lost the clinical tone there.
Also, I feel that the payoff, aka the loss of one agent for no good reason, is a bit weak. Maybe you could have the agent explore the origins or the motives of 147. Maybe you could look at it's history and exemplify some examples. Or even you could see how people work around 147.
I'm going to have to 3 now. 4 or 5 if these get executed.