Host-Parasite Interactions

**Definition:** The relationship between an invertebrate and another organism (the host), one of which lives at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically.

**Tree numbers:** - G16.527.200.400

**Synonyms:** - Parasite-Host Relations - Host-Parasite Relations - Host-Parasite Relationship - Parasite-Host Interactions