Genetic variation in parasite avoidance, yet no evidence for constitutive fitness costs

Abstract
Behavioral avoidance of parasites is a widespread strategy among animal hosts and in human public health. Avoidance has repercussions for both individual and population-level infection risk. Although most cases of parasite avoidance are viewed as adaptive, there is little evidence that the basic assumptions of evolution by natural selection are met. Read full publication.

Caroline R Amoroso, Leila L Shepard, Amanda K Gibson
https://pubmed.ncbi.nlm.nih.gov/38416416/