What does parasitiasis indicate?

Parasitiasis refers to a condition where parasites are present within an animal but do not cause any noticeable clinical signs or symptoms. In this state, the animal carries the parasites without showing any indication of disease or discomfort, meaning it is asymptomatic. This concept is important in veterinary medicine as it highlights cases where a parasite may be able to thrive within a host, potentially leading to future health issues or outbreaks without the immediate presence of symptoms. Recognizing parasitiasis allows veterinarians to determine when preventive measures or treatments may be necessary even when the animal appears healthy.

The other options describe different scenarios: clinical signs indicate a more severe infection or infestation, eradication suggests the complete removal or death of the parasites, and infestation without symptoms may imply a presence of parasites, but it lacks the specific context that "no clinical signs but parasites present" provides in the definition of parasitiasis.