The phrase "immature heartworms" refers to young heartworm parasites that have not fully developed into adults.
Sentences with «immature heartworms»
The mosquito deposits immature heartworm larvae on the surface of the cat's skin. (leandervetclinic.com)
The tiny immature heartworms are transmitted through the bite of a mosquito. (cfvh.com)
A portion of this blood is used to determine if mature heartworms exist in your pet, while another blood sample is examined for immature heartworms. (shallowfordanimal.com)