title: Increasing circulation of Alaria alata mesocercaria in wild boar populations of the Rhine valley, France, 2007-2011.
abstract: The presence of the mesocercarial stage of Alaria alata (Goeze, 1792) in wild boar meat represents a potential risk for human, but little is known about the circulation of mesocercaria in wild boar populations. Routine Trichinella inspection, mandatorily performed in wild boar in France, also allowed detecting mesocercaria. We analyzed the results of this detection in the carcasses of 27,582 wild boars hunted in 2007-2011, in 502 hunting areas of the Rhine valley. Prevalence was globally low (0.6%), but 12% of the hunting areas were affected. These were clustered in lowlands of the Rhine valley, and prevalence strongly decreased with increasing elevation. In the lowlands, prevalence doubled between 2007 and 2011. This time trend and the geographic aggregation of positive wild boars suggest risk management measures based on targeted surveillance, control and prevention.
authors.affiliation: UMR BIPAR, Anses, ENVA, Paris-Est, French Agency for Food, Environmental and Occupational Health and Safety, Laboratory for Animal Health, 23 avenue du Général de Gaulle, 94706 Maisons-Alfort Cedex, France; EA 4688 - USC Anses «VECPAR», UFR de Pharmacie, Université de Reims Champagne - Ardenne, 51 rue Cognacq-Jay, 51096 Reims, France.
authors.forename: Julien
authors.initials: J
authors.lastname: Portier
authors.affiliation: UMR BIPAR, Anses, ENVA, Paris-Est, French Agency for Food, Environmental and Occupational Health and Safety, Laboratory for Animal Health, 23 avenue du Général de Gaulle, 94706 Maisons-Alfort Cedex, France. Electronic address: isabelle.vallee@anses.fr.
authors.forename: Isabelle
authors.initials: I
authors.lastname: Vallée
authors.affiliation: UMR BIPAR, Anses, ENVA, Paris-Est, French Agency for Food, Environmental and Occupational Health and Safety, Laboratory for Animal Health, 23 avenue du Général de Gaulle, 94706 Maisons-Alfort Cedex, France.
authors.forename: Sandrine A
authors.initials: SA
authors.lastname: Lacour
authors.affiliation: Direction Départementale de la Protection des Populations du Bas-Rhin, Mission surveillance sanitaire du gibier, 2 place de l'abattoir, 67000 Strasbourg, France.
authors.forename: Régine
authors.initials: R
authors.lastname: Martin-Schaller
authors.affiliation: EA 4688 - USC Anses «VECPAR», UFR de Pharmacie, Université de Reims Champagne - Ardenne, 51 rue Cognacq-Jay, 51096 Reims, France.
authors.forename: Hubert
authors.initials: H
authors.lastname: Ferté
authors.affiliation: Epidemiology Unit, French Agency for Food, Environmental and Occupational Health and Safety, Laboratory for Animal Health, 23 avenue du Général de Gaulle, 94706 Maisons-Alfort Cedex, Maisons-Alfort, France. Electronic address: benoit.durand@anses.fr.
authors.forename: Benoit
authors.initials: B
authors.lastname: Durand
mesh_terms: D000818:Animals; D005602:France; D008460:Meat / Q000469:parasitology*; D015995:Prevalence; D034421:Sus scrofa / Q000469:parasitology*; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*; D014200:Trematoda / Q000502:physiology*; D014201:Trematode Infections / Q000453:epidemiology / Q000662:veterinary*
keywords: Alaria alata; Epidemiology; Geographical cluster; Mesocercaria