Mario A Calvo

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BACKGROUND AND GOALS Adenosine deaminase (ADA) levels are used for diagnosing tuberculosis in several locations and although many studies have evaluated ADA levels in ascitic fluid. These studies have defined arbitrary cut-off points creating difficulties in the clinical application of the results. The goals of this study are: to determine the usefulness of(More)
Pulsed-field gel electrophoresis (PFGE) of SmaI macrorestriction fragments of genomic DNA as well as staphylococcal cassette chromosome mec (SCCmec) typing for mecA-carrying isolates were used to study the distribution of clonal types among 177 Staphylococcus aureus clinical isolates recovered in a Spanish hospital between 2000 and 2003. Five major clonal(More)
Saccharomyces cerevisiae is widely used as a probiotic compound. Clinical data suggest that this agent is safe and effective. We report two cases of fungemia caused by S. cerevisiae occurring in immunosuppressed patients treated orally with S. boulardii Molecular typing confirmed clonality in isolate strains from patients and the capsule. Physicians caring(More)
BACKGROUND There are no internationally validated questionnaires to investigate the prevalence of infant wheezing. This study was undertaken to validate a questionnaire for the International Study on the Prevalence of Wheezing in Infants (Estudio Internacional de Sibilancias en Lactantes, EISL). MATERIAL AND METHODS Construct and criterion validity were(More)
Andes hantavirus (ANDV) causes hantavirus cardiopulmonary syndrome in Chile and is the only hantavirus for which person-to-person transmission has been proven. We describe an outbreak of 5 human cases of ANDV infection in which symptoms developed in 2 household contacts and 2 health care workers after exposure to the index case-patient. Results of an(More)
OBJECTIVES To study the association between proximity to air polluting industrial facilities and mortality in the Basque Country (Spain) in the 1996-2003 period. METHODS A cross-sectional ecological study with 1465 census sections (CS) as units of analysis with a mean population of 1257 inhabitants. Association of CS mortality with proximity of industries(More)
BACKGROUND In developed countries, the prevalence of asthma in children has significantly increased in the last decades. However, there is no information about the trends of asthma in Latin America. AIM To determine changes in asthma prevalence between 1994 and 2002 in Chilean schoolchildren. MATERIAL AND METHODS The prevalence of asthma symptoms in(More)
We describe nine polymorphic tetranucleotide microsatellite loci from the starfish, Asterina gibbosa. Loci were isolated from a partial genomic library that had been enriched for AAAC repeat sequences. Number of alleles per locus ranged from two to 14 in a sample of 85 individuals from three populations (two from Spain and one from the UK). Observed and(More)
A lupin seed γ-conglutin-enriched preparation was tested in a glucose overload trial with both murine models and adult healthy volunteers. The results with rats showed a dose-dependent significant decrease of blood glucose concentration, which confirmed previous findings obtained with the purified protein. Moreover, three test-product doses equivalent to(More)
BACKGROUND There is little information about the prevalence of asthma in Latin American children. AIM To determine the prevalence of asthma among Chilean school age children. SUBJECTS AND METHODS The prevalence of respiratory symptoms related to asthma in schoolchildren aged 7 and 13 years, coming from South Santiago, Central Santiago, Valdivia and(More)