The detected parasites present a risk to human health, so it seems necessary to implement health education activities in the community, develop deworming plans, and control the canine overpopulation.

Parasite species are important components of biodiversity, as they provide valuable information about host health, evolutionary relationships, population structures, trophic interactions, the existence of environmental stresses, and climatic conditions. With the aim of describing the parasites associated with parrots of the genus Enicognathus Gray 1840 from central Chile, thirteen austral parakeets, Enicognathus ferrugineus, and five slender-billed parakeets, E. leptorhynchus, were examined between September 2007 and March 2014. The prevalence of ectoparasites and endoparasites was 88.9% and 22.2%, respectively. On eleven of the E. ferrugineus (84.6%) analyzed, and on all of the E. leptorhynchus analyzed (100%), five feather mite species (Pararalichus hastifolia, Genoprotolichus major, Protonyssus sp., Fainalges sp., and Eurydiscalges sp.) were collected. On ten E. ferrugineus (76.9%) and two E. leptorhynchus (40%), the chewing lice Heteromenopon macrurum, Psittacobrossus patagoni, and Paragoniocotes enicognathidis were collected. The nematode Capillaria plagiaticia was collected from three E. ferrugineus (23.1%), and the nematode Ascaridia hermaphrodita was found in one E. leptorhynchus (20%). The presence of C. plagiaticia, Protonyssus sp., Fainalges sp., and Eurydiscalges sp. from the two Enicognathus spp. are new records for Chile and represent new parasite-host associations.

Seroprevalence of Bartonella henselae in occupational risk personsIntroduction: Bartonella henselae infection is a worldwide zoonosis with the domestic cat as reservoir. Although people with occupational contact with these pets are risk population only few studies of prevalence in them have been reported. Methods: A study of seroprevalence of B. henselae was performed to veterinaries and other persons with occupational contact with cats, residents from the Bío-Bío region of Chile. Serum IgG antibodies against B. henselae were determined by indirect immunofluorescence (IFI). Demographic data and history of cat bites or scratches were recorded. Results: There were 76 persons included in the study, 18 to 69 years old. A 93.4% had a history of cat scratch or bite. A seroprevalence of 60.5% were found. No differences were found between gender, age, or history of cat scratch or bite. Conclusions: A high seroprevalence in people from this region with occupational risk were found. No subgroups with higher risk factors than others were identified.

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An in vitro study of potential attachment sites for the reconstruction of the medial collateral ligament of canine stiflesEstudio in vitro sobre potenciales puntos de anclaje para la reconstrucción del ligamento colateral medial en rodillas caninas RESUMENLa ruptura del ligamento colateral medial conlleva a inestabilidad articular de la rodilla en perros y debe ser reparada quirúrgicamente lo antes posible. El posicionamiento del implante en una posición isométrica es necesario para mantener la estabilidad articular evitando tensiones excesivas o aflojamiento del implante durante el movimiento articular. El objetivo del presente estudio fue determinar la isometría potencial de tres combinaciones de anclaje; un anclaje femoral en combinación con tres anclajes en la zona proximal de la tibia en nueve rodillas caninas. Se determinó la distancia entre el marcador femoral y los tres distintos marcadores tibiales en radiografías de cada rodilla en tres distintos ángulos articulares (extensión máxima, 130° y máxima flexión). Ninguna combinación estudiada resultó isométrica. Todas las combinaciones demostraron un leve aumento de la distancia en extensión del miembro y una reducción marcada de la longitud en máxima flexión articular. El menor cambio total de longitud se encontró en el marcador tibial más distal. El presente estudio demuestra que hay variación de longitud entre distintos puntos posibles de anclaje para la reparación del LCM y puede ser la base para futuras investigaciones relacionadas con dicha lesión.Palabras clave: rodilla canina, ligamento colateral, isometría. SUMMARYRupture of the medial collateral ligament (MCL) results in joint instability of the stifle in dogs and should be surgically repaired as early as possible. Placement of a prosthetic ligament in the most isometric position is necessary to maintain joint stability avoiding excessive tension or loosening on the implant during joint motion. The objective of the present study was to determine the potential isometry of three anchor paired sites in canine cadaveric stifles. The length from a femoral marker to each of 3 medial tibial markers was determined from radiographs of each limb in different joint angles (maximal extension, 130° and maximal flexion). None of the anchor combinations were isometric. All combinations had low increase in length on stifle extension and a pronounced decrease on stifle flexion. The least change in length was measured on the more distal tibial anchor marker. The present study demonstrates that some locations for the origin and insertion of a prosthetic MCL are associated with less length change.