Hardly an accident, normal food poisoning doesn't kill 45 adults who are in fighting shape. Even many Sunnis are getting tired of this ISIS shit
Being in fighting shape isn't going to stop people from dying of food poising, especially if it's a really bad case, though I am more inclined to believe it was more likely deliberate poising by outside agents (especially if it's happened in the past). If people can get close enough to poison food though couldn't they also just ambush and kill them all from inside?
Whether the poisonings were intended or by accident has yet to be confirmed. However, The Mirror reported last November an attack involved members of the Syrian Free Army infiltrating ISIS with poison.
Rebel soldiers posed as chefs and poisoned dozens of ISIS militants at the Fath El-Sahel camp in Syria.