Parasite. 2005 Jun;12(2):99-109.
Vectorial role of some dermanyssoid mites (Acari, Mesostigmata, Dermanyssoidea).
Valiente Moro C, Chauve C, Zenner L.
Unité Mixte de Recherche PEV ENVL/INRA 958, Service de Parasitologie, Ecole Nationale Vétérinaire de Lyon, 1, avenue Bourgelat, BP 83, 69280 Marcy l'Etoile, France.
Among transmissible diseases, vectorial diseases represent a major problem for public health. In the group of acarina, while ticks are the most commonly implicated vectors, other arthropods and notably Dermanyssoidea are also involved in the transmission of pathogenic agents. Since the role of this superfamily is at present largely unknown, we have reviewed the vectorial role of these mites in the appearance, survival and propagation of pathogens. Various authors have shown that Dermanyssoidea are implicated in the transmission of both bacteria (Salmonella, Spirocheta, Rickettsia or Pasteurella) and viruses (equine encephalitis viruses, West Nile virus, Fowl pox virus, the virus causing Newcastle disease and tick borne encephalitis viruses or hantaviruses). Finally, some authors have also shown their role in the transmission of some protozoa and filaria. As the vectorial character of such mites has been more clearly demonstrated (Dermanyssus gallinae, Omithonyssus bacoti and Allodermanyssus sanguineus), it would be interesting to continue studies to better understand the role of this superfamily in the epidemiology of certain zoonoses.
Med Vet Entomol. 2003 Jun;17(2):232-4.
The poultry red mite, Dermanyssus gallinae, a potential vector of Erysipelothrix rhusiopathiae* causing erysipelas in hens.
Chirico J, Eriksson H, Fossum O, Jansson D.
Department of Parasitology (SWEPAR), National Veterinary Institute, SE-751 89 Uppsala, Sweden.
Jan.Chirico@sva.se
Erysipelas is a bacterial disease caused by Erysipelothrix rhusiopathiae, which may infect swine as well as several other species of mammals and birds, including domestic fowl. In poultry, erysipelas may cause sudden high mortality due to septicemia. This communication describes the first isolation of E. rhusiopathiae from the haematophagous poultry red mite, Dermanyssus gallinae DeGeer (Acari: Dermanyssidae), that was collected on three farms where hen erysipelas was diagnosed. The bacteria were isolated from the integument as well as from the interior of the mites. Serotypes 1a and 1b of E. rhusiopathiae found in the mites corresponded with those isolated from the diseased birds. These findings imply that D. gallinae is a potential vector of E. rhusiopathiae. The current lack of effective measures to control D. gallinae causes recurring mite problems in poultry facilities once afflicted by this parasite. Consequently, mites containing E. rhusiopathiae may act as reservoir hosts of this bacterium, allowing it to persist in the poultry house between flock cycles as a source of infection for the replacement pullets. The zoonotic potentials of both E. rhusiopathiae and D. gallinae should also be considered.
* Rotlauferreger
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