CRICKET DISEASES excerpt...
Crickets also are prone to eat other dead crickets or other dead animals and feces. The items that they have eaten could have been exposed to dangerous pathogens. If you feed your pets infected crickets, the pets get sick. If you have more than one pet, they could spread this sickness through their fecal matter and dead skin cells.
Yep. My sister-in-law says crickets are just glorified cockroaches.