Parasites from earthworms

[Holy Mackerel]

In turtle keepers experience, how great is the threat of feeding wild caught earthworm to turtles.

From what I understand nightcrawlers and earthworms often carry parasites, but are those parasites transferable to turtles? and how great is the threat if the parasites are transferred?

Lastly, what parasites would the nightcrawlers and earthworms carry?

Steve