oomis:”Do we check poultry and meat flesh for these worms, as well”
No, they are not infested.
“But if Hashem gave us fish to eat, the presumably He knew that fish ingest worms and they might be hard, if not impossible to remove from them. Yet, He did not say, eat the fish with fins and scales, but not if they have worms”
Hashem also gave us lettuce to eat knowing that bugs lay their eggs there and it might be hard if not impossible to check. Yet hHe did not say “eat only lettuce if it does not have worms”
What is the difference???