Spotlight on avian pathology: Red mite, a serious emergent problem in layer hens

Dermanyssus gallinae, the poultry red mite (PRM), is currently the most important ectoparasite of the egg laying industry worldwide with an expanding global prevalence. As a blood feeder, it causes anaemia and severe welfare issues to the hens and is a major cause of economic losses. It is also a vector for Salmonella species, avian influenza and potentially for other vector-borne pathogens. Paradoxically, there is a notable lack of funding for research into PRM and an urgent need for effective and safe control strategies, sustainable therapies, prophylactics and integrated pest management (IPM).