... , and suppresses host feeding. These manipulations prevent the host from attacking the parasite. Cytokine Illness-induced anorexia Sickness behaviour Immune gene expression Numbness Parasitic manipulators are parasites that alter host behaviour, leading to an enhancement of the parasite's...

... aspects of fever and other sickness behaviours (circadian variation, dose dependence) in a small songbird, the zebra finch. We injected lipopolysaccharide (LPS) at the beginning of either the day or the night, and subsequently monitored body temperature, body mass change and food intake for the duration...

...; transmission studies show that the virus can be spread through sexual contact. Sickness behaviour, the adaptive reduction of feeding and sexual behaviour that is induced by an activated immune system, was absent in infected crickets. Total haemolymph protein was reduced, as was phenoloxidase activity...