Facultad de Ciencias de la Salud: Recent submissions
Now showing items 401-420 of 1547
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Baylisascariasis como diagnóstico diferencial larva migrans en humanos, Costa Rica
(Universidad de Costa Rica, 2018-04-25)Baylisascariasis es una enfermedad causada por una animales, clasificada como una zoonosis emergente de importancia en salud pública. El agente causal es el nemátodo Baylisascaris procyonis, siendo su huésped definit de ... -
Survey of wild mammal hosts of cutaneous Leishmaniasis parasites in Panamá and Costa Rica
(The Japanese Society of Tropical Medicine, 2014-12-06)The eco-epidemiology of American cutaneous leishmaniasis (ACL) is driven by animal reservoir species that are a source of infection for sand flies that serve as vectors infecting humans with Leishmania spp parasites. The ... -
First report of Trypanosoma vivax infection in dairy cattle from Costa Rica
(Elsevier, 2009)An outbreak of haemoparasitoses occurred from October 2007 to July 2008 in cattle from the district of Rio Cuarto, province of Alajuela, Costa Rica. Fifty animals of various ages out of 450 Brown Swiss were affected. The ... -
Fine-scale variation in vector host use and force of infection drive localized patterns of West Nile virus transmission
(PLOS ONE, 2011-08-19)The influence of host diversity on multi-host pathogen transmission and persistence can be confounded by the large number of species and biological interactions that can characterize many transmission systems. For ... -
Evaluación de la fertilidad de hembras Bos indicus, de acuerdo a la intensidad del celo, manejadas en un programa de inseminación artificial a tiempo fijo en condiciones de trópico
(Universidad del Zulia, 2009)El objetivo del presente estudio fue evaluar la fertilidad obteni da en un hato, según dos tiempos de Inseminación Artificial (IA) a tiempo fijo: 48 y 72 horas, posterior a un programa de sincronización de celos, tomando ... -
Nonlinear impacts of climatic variability on the density dependent regulation of an insect vector of disease
(Blackwell, 2011-09)Aedes aegypti is one of the most common urban tropical mosquito species and an important vector of dengue, chikungunya, and yellow fever viruses. It is also an organism with a complex life history where larval stages ... -
New and common haplotypes shape genetic diversity in Asian tiger mosquito populations from Costa Rica and Panama
(Oxford University Press, 2015)The Asian tiger mosquito, Aedes albopictus (Skuse) (Diptera: Culicidae), is a vector of sev eral human pathogens. Ae. albopictus is also an invasive species that, over recent years, has expanded its range out of its native ... -
Seasonal weather, nutrients, and conspecific presence impacts on the southern house mosquito oviposition dynamics in combined sewage overflows
(Entomological Society of America, 2012-06-13)Combined sewage overflows have created favorable conditions for the establishment of the southern house mosquito, Culex quinquefasciatus Say (Diptera: Culicidae), larvae in natural creeks that would otherwise be unsuitable ... -
Indian Ocean Dipole and Rainfall Drive a Moran Effect in East Africa Malaria Transmission
(Oxford University Press, 2012-06-15)Background. Patterns of concerted fluctuation in populations—synchrony—can reveal impacts of climatic variability on disease dynamics. We examined whether malaria transmission has been synchronous in an area with a common ... -
Indian Ocean Dipole drives malaria resurgence in East African highlands
(SCIENTIFIC REPORTS, 2012-02-16)Malaria resurgence in African highlands in the 1990s has raised questions about the underlying drivers of the increase in disease incidence including the role of El-Nin ̃o-Southern Oscillation (ENSO). However, climatic ... -
Host life history strategy, species diversity, and habitat influence Trypanosoma cruzi vector infection in changing landscapes
(PLOS Neglected Tropical Diseases, 2012-11-15)Background: Anthropogenic land use may influence transmission of multi-host vector-borne pathogens by changing diversity, relative abundance, and community composition of reservoir hosts. These reservoir hosts may have ... -
Morfologia externa de Triatoma ryckmani Zeledón & Ponce, 1972 vista através da microscopia eletrônica de Varredura
(Memórias do Instituto Oswaldo Cruz, 1996-12)External Morphology of Triatoma rickmani Zeledón & Ponce, 1972 by Scanning Electron Mi croscopy - A male of Triatoma ryckmani Zeledón & Ponce, 1972, was studied by scanning electron microscopy. Only few specimens of this ... -
Extensive Cell Envelope Modulation Is Associated with Virulence in Brucella abortus
(American Chemical Society, 2007-08-03)Brucella virulence is linked to components of the cell envelope and tightly connected to the function of the BvrR/BvrS sensory-regulatory system. To quantify the impact of BvrR/BvrS on cell envelope proteins, we performed ... -
Evidence of colonization of man-made ecotopes by Triatoma dimidiata (Latreille, 1811) in Costa Rica
(Memórias do Instituto Oswaldo Cruz, 2001-07)Triatoma dimidiata adults have been frequently found, during the last five years, in a dog kennel and a chicken coop, in the back yard of a well-built house, 15 km from San José, the capital of Costa Rica. In the chicken ... -
Evaluation of early embrionic development after natural mating using ultrasonography in bos indicus cows in the humid tropics of Costa Rica
(Springer, 2008)Fifty-eight nursing Zebu cows averaging 5922 days postpartum were used to evaluate the early embryonic development by ultrasound under a natural mating system (bulls A to F). Three consecutive mating periods of 21 days ... -
Caso de Otodectes cynotis en un gato cachorro
(Universidad Nacional, Costa Rica, 2012)Otodectes cynotis se conoce como el ácaro de la oreja y causa entre el 50-84% de otitis externa en gatos. Pertenece a la familia Psoroptidae y afecta conejos, gatos, hurones, pe- rros y ratas; principalmente a los ... -
Underwater diseases... A silent threat: fungal infections in octocorals
(WDA Latin America, 2017-07)Research on wildlife diseases is a challenge that goes from determining a significant sample size to choosing the sampling site and then confronting the particularities of field work and the studied species. The challenge ... -
Primer reporte de Leporacarus gibbus (Acarina: Lestrophoridae) en conejos de carne (Oryctolagus cuniculus) en Costa Rica
(Universidad Nacional, Costa Rica, 2011-07)Leporacarus gibbus virus es un ácaro de pelo de conejo que no penetra la piel, se ha descrito como patógeno incluso en elevadas infestaciones. El ciclo de vida es poco conocido y todos los estadios (huevo, larva, ninfa) ... -
Prototecosis en caninos en Costa Rica: ¿cuándo sospechar y qué buscar?
(Universidad Nacional, Costa Rica, 2022-01)La prototecosis es una enfermedad causada por algas saprófitas, no clorofílicas, unicelulares y oportunistas del género Prototheca, que afecta, principalmente, a animales con inmunodeficiencias. En caninos, con la forma ... -
Epizootic of dolphin morbillivirus on the Catalonian Mediterranean coast in 2007
(British Veterinary Association, 2011-07-23)BETWEEN 1990 and 1992, thousands of striped dolphins (Stenella coeruleoalba) stranded along the Mediterranean coast due to a newly described virus, the dolphin morbillivirus (DMV) (Domingo and others 1990, 1992). DMV is ...