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Mostrando ítems 61-70 de 345
Prevalencia de niveles bajos de 25(OH)-vitamina D en universitarios costarricenses
Prevalence of low 25 OH-Vitamin D levels in Costa Rican university students
(2023)
Objetivo: Describir la prevalencia de hipovitaminosis D3 y sus características clínicas y
bioquímicas en una población de universitarios costarricenses.
Métodos: Investigación transversal y descriptiva en un total de 118 ...
Development and distribution of cysts of an avirulent strain of Toxoplasma and the humoral immune response in mice
(1990)
An avirulent T. gondii strain isolated from a owl (Glaucidium brasilúmum) produces randomIy distributed cysts in the brain of mice which can survive to inocula as high as lOOO oocysts. Cysts appeared for !he first time ...
Isolates of Clostridium perfringens recovered from Costa Rican patients with antibiotic-associated diarrhoea are mostly enterotoxin-negative and susceptible to first-choice antimicrobials
(2008-03)
To assess the prevalence of enterotoxigenic Clostridium perfringens among adults suffering from antibiotic-associated diarrhoea in a Costa Rican hospital, faecal samples were analysed from 104 patients by a cultivation ...
Perfil de lípidos y lipoproteínas en inmigrantes chinos residentes en Costa Rica
Lipid profile of Chinese immigrants living in Costa Rica
(2002)
Se estudió el perfil de lípidos y el patrón de consumo de una población de 50 adultos chinos inmigrantes residentes en San José, Costa Rica durante el año de 1999. Los resultados indican que el 35% de éstos (as) inmigrantes ...
Modeling dengue cases in health Regions of Costa Rica using El Niño Southern Oscillation and local vegetation dynamics
(2009-11)
Temporal behavior of dengue fever and dengue hemorrhagic fever (DH/DHF) has been associated with climate, which may modulate mosquito vector populations. El Niño Southern Oscillation (ENSO) fluctuations can be related to ...
Lettuce for Human Consumption Collected in Costa Rica Contains Complex Communities of Culturable Oxytetracycline- and Gentamicin-Resistant Bacteria
(2006-09)
The present widespread use of antimicrobials in crop farming is based upon their successful application in
human medicine. However, recent evidence suggests that the massive anthropogenic release of antimicrobials into ...
A Fluorescent Real-Time Plaque Assay Enables Single-Cell Analysis of Virus-Induced Cytopathic Effect by Live-Cell Imaging
(2021-06-22)
Conventional plaque assays rely on the use of overlays to restrict viral infection allowing
the formation of distinct foci that grow in time as the replication cycle continues leading to countable
plaques that are ...
Seroprevalencia de los virus de las Hepatitis A y B en grupos etarios de Costa Rica
(2001-10)
Justificación y Objetivos: Debido a la persistencia de casos y brotes de hepatitis viral A y B en el país, junto con la observación de un aumento importante de infecciones por el tipo A en la población de adultos, se planteó ...