I'll toss in a couple more data points regarding crickets and pinworms:
Pinworms Not Found in Commercial Crickets
Back around the same time as my old post, I did "floats" on crickets, dubias, silkworms, hornworms, superworms etc. looking for parasite eggs but was unable to find any within my small sample groups. It doesn't mean that out of years of feeders that one wasn't carrying a parasite, but more likely that they are not heavily infested with them. A number of us have our own microscopes and do frequent sample tests of our chameleon's poop. Once in a while I used to find a few pinworm eggs and I could only assume that they came from a feeder at some point. I simply treated with Panacur and continued to monitor with my own testing once a month or so. I'd often see stretches of many, many months without a sign of any parasite eggs. I'd say that if your chameleon acts healthy and you get a fecal done maybe 1-2 times a year then you are covered
My own chameleon collection has been so free of parasite problems that I began testing friends' chameleon poop to keep things interesting
. I got to see a number of parsite species that way
. Necropsies of friends' chameleons provided lots of insight too
Here's a photo of a pinworm egg that I took using my trinocular microscope and my DSLR with an adapter:
P.S. For fun, if you still have some, try to incubate those tiny worms and see what they turn into, if anything.