Facultad de Ciencias de la Salud: Recent submissions
Now showing items 961-980 of 1554
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First report of a naturally patent infection of Angiostrongylus costaricensis in a dog
(Veterinary Parasitology, 2015-09-15)Angiostrongylus costaricensis is the zoonotic agent of abdominal angiostrongyliasis in several countries in North and South America. Rodents are recognized as the main definitive hosts of A. costaricensis, but other wildlife ... -
Identification and antimicrobial susceptibility of obligate anaerobic bacteria from clinical samples of animal origin
(Anaerobe, 2015-09-14)The etiology of veterinary infectious diseases has been the focus of considerable research, yet relatively little is known about the causative agents of anaerobic infections. Susceptibility studies have documented the ... -
Effect of an energy supplementation, weaning and oestrous synchronisation on ovarian activity and ovulation in early postpartum primiparous Bos indicus cows raised in the tropics of Costa Rica
(American Society for Microbiology., 2015-09-07)To evaluate the effect of an energy supplementation, 26 postpartum Bos indicus cows were assigned either to receive an energy diet supplementation (n ≤ 11, SSD) or no supplementation (n ≤ 15, NSSD). Cows in the SSD treatment ... -
Prevalencia de fasciolosis en bovinos de Costa Rica (2014). Comparación de cuatro técnicas para su diagnóstico [Prevalencia de fasciolosis en bovinos de Costa Rica (2014). Comparación de cuatro técnicas diagnósticas]
(Escuela de Medicina Veterinaria, 2016-07-04)A cross-sectional study was done to determine the prevalence of fasciolosis in cattle slaughtered in abattoirs of Costa Rica and to compare 4 different diagnostic techniques (macroscopic examination of the livers, standard ... -
Neuroinvasion of the highly pathogenic influenza virus H7N1 is caused by disruption of the blood brain barrier in an avian model
(PLOS ONE, 2014-12-15)Influenza A virus (IAV) causes central nervous system (CNS) lesions in avian and mammalian species, including humans. However, the mechanism used by IAV to invade the brain has not been determined. In the current work, we ... -
R-Ras Glucosylation and Transient RhoA Activation Determine the Cytopathic Effect Produced by Toxin B Variants from Toxin A-negative Strains of Clostridium difficile
(Universidad Nacional, Costa Rica, 2003-03)Clostridium difficile induces antibiotic-associated di-arrhea through the production of toxin A and toxin B;the former toxin has been assumed to be responsible forthe symptoms of the disease. Several toxin ... -
Analysis of TcdB proteins within the hypervirulent clade 2 reveals an impact of RhoA glucosylation on Clostridium difficile proinflammatory activities
(Infection and Immunity, 2016-03)Clostridium difficile strains within the hypervirulent clade 2 are responsible for nosocomial outbreaks worldwide. The increased pathogenic potential of these strains has been attributed to several factors but is still ... -
Canine distemper virus in wild felids of Costa Rica
(Journal of Wildlife Diseases, 2016-04-01)Several highly infectious diseases can be transmitted through feces and cause elevated mortality among carnivore species. One such infectious agent, canine distemper virus (CDV; Paramyxoviridae: Morbillivirus), has been ... -
Persistence of Brucella abortus lineages revealed by genomic characterization and phylodynamic analysis
(PLOS Neglected Tropical Diseases, 2020-04-14)Brucellosis, caused by Brucella abortus, is a major disease of cattle and humans worldwide distributed. Eradication and control of the disease has been difficult in Central and South America, Central Asia, the Mediterranean ... -
Salmonellosis detection and evidence of antibiotic resistance in an urban raccoon population in a highly populated area, Costa Rica
(WILEY, 2019-07-29)Wild animals are involved in zoonotic disease transmission cycles. These are generally complex and poorly understood, especially among animals adapted to life in human ecosystems. Raccoons are reservoirs and effective ... -
Anatomía topográfica del gato: tórax
(Universidad Nacional, Costa Rica, 2019-12-01)The objective of this video is to show the dissection of the cat's thorax, using the dissection protocol created by Dr. Andréia Passos Pequeno and used in the Animal Anatomy laboratory of the School of Veterinary Medicine. -
Anatomía topográfica del perro: cabeza (2º ejemplar)
(Universidad Nacional, Costa Rica, 2020-06-08)The objective of this video is to show the dissection of the dog's head, using the dissection protocol created by Dr. Andréia Passos Pequeno and used in the Animal Anatomy laboratory of the School of Veterinary Medicine. -
Pulmonary sarcocystosis in a puppy with canine distemper in Costa Rica
(Universidad Nacional, Costa Rica, 2003-05-01)Canine distemper and pulmonary sarcocystosis were diagnosed in a 10-week-old Rottweiler with 4-day history of diarrhea, vomiting, and weakness. Microscopic examination of the lung revealed bronchointerstitial pneumonia ... -
The effect of the dam–calf relationship on serostatus to Neospora caninum on 20 Costa Rican dairy farms
(Universidad Nacional, Costa Rica, 2003-03-31)An epidemiological study was conduced on 20 dairy herds previously diagnosed as seropositive for Neospora caninum. The number of females per farm varies from 41 to 296. All females present on the farms were bled once in ... -
Vesicular stomatitis virus glycoprotein is a determinant of pathogenesis in swine, a natural host
(American Society for Microbiology., 2003-07)There are two major serotypes of vesicular stomatitis virus (VSV), Indiana (VSIV) and New Jersey (VSNJV).We recovered recombinant VSIVs from engineered cDNAs that contained either (i) one copy of the VSIV G gene(VSIV-GI); ... -
N-formyl-perosamine surface homopolysaccharides hinder the recognition of Brucella abortus by mouse neutrophils
(Universidad Nacional, Costa Rica, 2016-06)Brucella abortus is an intracellular pathogen of monocytes, macrophages, dendritic cells, and placental trophoblasts. This bacterium causes a chronic disease in bovines and in humans. In these hosts, the bacterium also ... -
Brucella abortus strain 2308 Wisconsin genome: Importance of the definition of reference strains
(Frontiers in Microbiology, 2016-09-29)La brucelosis es una enfermedad infecciosa bacteriana que afecta a una amplia gama de mamíferos y una zoonosis desatendida causada por especies del género genéticamente homogéneo Brucella. Como en la mayoría de los estudios ... -
Serology, molecular detection and risk factors of Ehrlichia canis infection in dogs in Costa Rica
(Ticks and Tick-borne Diseases, 2016-10-06)A cross-sectional study combining different serological and molecular techniques for the detection of Ehrlichia species in dogs and their ticks was carried out with data from all regions of Costa Rica. A seroprevalence of ... -
Canine trypanosomiasis in an endemic Costa Rican community: demonstration of the active infection cycle
(Universidad Nacional, Costa Rica, 2019-05-29)A cross-sectional study was conducted to determine the prevalence of canine trypanosomiasis in an endemic community of Costa Rica. The indirect hemagglutination and indirect immunofluorescence assay yielded positive results ... -
Detection of antibodies against flavivirus over time in wild non-human primates from the lowlands of Costa Rica
(PLOS ONE, 2019-07-05)Two-hundred-nine free ranging non-human primates from 31 locations throughout Costa Rica were captured and released between 1993 and 2012, and blood samples, sera or plasma were collected, to detect antigens and antibodies, ...