Browsing by Subject "Reservoir"

Now showing 1 - 5 of 5
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    Agua, memoria y territorio en la literatura infantil : El valor del agua (2011), de Julio Llamazares
    (Universidad de Zaragoza, Asociación Universitaria de Formación del Profesorado (AUFOP), 2017) Selfa Sastre, Moisés
    El agua ha sido utilizada en la Historia de la Literatura como representación semiótica de diferentes realidades y con una finalidad didáctica, ya que permite al autor de un texto dirigir un mensaje intencionado al lector. En el caso de la literatura española actual, el agua aparece en algunas novelas y textos de literatura infantil que narran la historia de pueblos inundados por pantanos. En este artículo realizamos un análisis de un texto de literatura infantil, El valor del agua (2011), obra que relata el destierro forzado de un personaje cuando las aguas de un pantano anegan todas sus posesiones.
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    Experimental infection of dogs with Toscana virus and Sandfly Fever Sicilian virus to determine their potential as possible vertebrate hosts
    (MDPI, 2020-04-20) Muñoz, Clara; Ayhan, Nazli; Ortuño, María; Ortiz Sánchez, Juana; Gould, Ernest A.; Maia, Carla; Berriatua, Eduardo; Charrel, Remi N.; Sanidad Animal
    The sandfly-borne Toscana phlebovirus (TOSV), a close relative of the sandfly fever Sicilian phlebovirus (SFSV), is one of the most common causes of acute meningitis or meningoencephalitis in humans in the Mediterranean Basin. However, most of human phlebovirus infections in endemic areas either are asymptomatic or cause mild influenza-like illness. To date, a vertebrate reservoir for sandfly-borne phleboviruses has not been identified. Dogs are a prime target for blood-feeding phlebotomines and are the primary reservoir of human sandfly-borne Leishmania infantum. However, there are no definitive studies to assess whether dogs play a significant role as a reservoir host for human phlebovirus survival in the environment. Here, we have evaluated the susceptibility of domestic dogs to infection by TOSV and SFSV following the direct inoculation of the infectious virus. After experimental infection, the presence of viral RNA was investigated in plasma, urine, saliva, conjunctiva, faeces, semen, and bone marrow samples from 0 to 91 days postinoculation (dpi), as well as in plasma, saliva, and tears samples at 760 dpi. None of the challenged dogs developed clinical signs of infection with either TOSV or SFSV. SFSV RNA was never detected. TOSV RNA was not in any of the specimen types, except for plasma samples that showed low viral loads, although irregularly. None of the dogs developed detectable neutralizing antibodies after a single challenge dose of either TOSV or SFSV. However, a second challenge dose of virus given 56 days later elicited neutralizing antibodies, implying that the first inoculation of virus primed the animals for an anamnestic response following the second challenge. These results demonstrated that healthy domestic dogs are not highly susceptible to infection by TOSV or SFSV and do not develop significant viremia or excrete virus following infection. Consequently, dogs are unlikely natural reservoir hosts of infection and do not appear to play a significant role in phlebovirus transmission cycles.
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    Parasitic fauna of a yellow-legged gull colony in the island of Escombreras (South-eastern Mediterranean) in close proximity to a landfill site: potential effects on cohabiting species
    (Springer, 2015-01-12) Hervías Parejo, Sandra; Martínez Carrasco Pleite, Carlos; Díaz, Julia I.; Chitimia, Lidia; Ortiz Sánchez, Juana; Mayo, Elvira; Ruiz de Ybáñez Carnero, María del Rocío; Sanidad Animal
    We identified the ectoparasites and helminth fauna of yellow-legged gulls (Larus michahellis michahellis), breeding near to a solid waste landfill, and compared infection levels with those of other yellow-legged gull colonies. Moreover, we analysed correlations between parasites and sex and body condition of yellow-legged gulls, co-infections and the helminth community structure in order to propose the role of this species as reservoir of certain parasites. We also discuss the potential transmission of parasites between the yellow-legged gull and the endangered Audouin's gull, because interactions between these two species, such as kleptoparasitism and predation, occur frequently around colonies. The following species were recorded: Ornithodorus capensis (Arthropoda); Cosmocephalus obvelatus, Paracuaria adunca, Eucoleus contortus, Tetrameres skrjabini and Contracaecum sp. (Nematoda); Tetrabothrius cylindraceus (Cestoda); Acanthotrema armata, Cardiocephaloides longicollis and Ornithobilharzia intermedia (Digenea). Tetrabothrius cylindraceus, A. armata and O. capensis are new parasite records for this host. The dependence of yellow-legged-gulls on fishery discards is supported by the dominance of parasites transmitted through marine intermediate hosts with interest to fisheries in the study area. However, the shift in diet from natural resources to food derived from human activities seems not to affect the parasitic fauna of yellow-legged gull. Besides of direct physical contact between individuals in nesting and resting habitats, the high availability of fishery discards could increase the risk of Audouin's gulls to be infected by common parasites of yellow-legged gull.
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    Primeras citas de Ecnomus tenellus (Rambur, 1842) (Trichoptera: Ecnomidae) para las provincias de Castellón, Cuenca y Valencia (Este de España)
    (Servicios de Publicaciones Universidad de Murcia, 2014) Rueda, Juan; Molina, Cristina; Benavent, Joan Miquel
    En el presente trabajo se da a conocer la presencia del tricóptero Ecnomus tenellus (Rambur, 1842) (Trichoptera: Ecnomidae) en el este peninsular. Se aportan datos sobre su aparición en las provincias de Castellón, Cuenca y Valencia. Destacamos la presencia de una importante población de esta especie en la franja litoral del lago de l’Albufera (Valencia, España), donde se capturaron 223 ejemplares repartidos en 13 muestras.
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    Wildlife-livestock host community maintains simultaneous epidemiologic cycles of Mycoplasma conjunctivae in a mountain ecosystem
    (MDPI, 2024-05-14) López-Olvera, Jorge Ramón; Ramírez, Eva; Martínez-Carrasco Pleite, Carlos; Granados, José Enrique; Sanidad Animal; Facultad de Veterinaria
    Infectious keratoconjunctivitis is an eye disease caused by Mycoplasma conjunctivae hat affects domestic and wild caprines, including Iberian ibex (Capra pyrenaica) and domestic sheep and goats. This study assessed M. conjunctivae in the host community of the Natural Space of Sierra Nevada (NSSN), a mountain habitat in southern Spain. Mycoplasma conjunctivae strains circulated endemically without causing clinical signs in Iberian ibex and livestock, either shared or maintained independently by each host species. In Iberian ibex, endemic infection was maintained by naïve subadults, with an epizootic outbreak when the infection spread to adults. Goat was at least as important as sheep in maintaining M. conjunctivae. The results suggest that the epidemiological role of wild ungulates should be considered in mountain ecosystems, as their mobility may contribute to the spread of IKC and other shared pathogens among spatially segregated livestock flocks.