Definition of «immature worms»

The phrase "immature worms" refers to worms that are not fully grown or not yet developed into their adult form.

Cats may only have a few mature worms or might only be infected with immature worms. (waterlooanimalhospitalok.com)
After approximately 60 days from infection the larvae develops into immature worms. (dachshund-owner-guide.com)
As the worms grow and reproduce, more immature worm are released into the blood stream. (cfvh.com)
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