The vomeronasal organ, a sensory structure within the olfactory system, detects chemical signals that affect social and sexual behaviors and that elicit responses to predator odors. A recent study demonstrates that innate avoidance of sick conspecifics requires an intact vomeronasal organ, expanding the repertoire of biological functions known to be mediated by this olfactory subsystem.
Bozza, T. (2015, February 16). Sensory neurobiology: Demystifying the sick sense. Current Biology. Cell Press. https://doi.org/10.1016/j.cub.2015.01.003