Is homonym used correctly in new dog had flees?

The word "flees" is not used correctly in the sentence "new dog had flees."

* Fleas are tiny, parasitic insects that live on animals.

* Flees is the third-person singular present tense form of the verb "flee" (to run away).

The sentence should read: "The new dog had fleas."

This sentence uses the correct noun "fleas" to describe the parasitic insects.