Juan Manuel Muñoz

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BACKGROUND The present study compared both the antiseptic efficacy of sodium hypochlorite against that of chlorhexidine gluconate in isopropyl alcohol and the substantive effect of chlorhexidine, povidone iodine, and sodium hypochlorite. METHODS This was a 2-step study that included volunteers. In step 1, 4 skin areas were tested for bacteria in(More)
BACKGROUND This study was conducted to compare the antiseptic efficacy of sodium hypochlorite of electrochemical production with that of povidone-iodine in human voluntaries. METHODS Three areas of 25 cm(2) each were selected from the forearms; 1 was designated as control to determine the baseline bacterial count; and 2 more were selected to swab 10%(More)
Stethoscopes can take part in the transmission of health care-associated infections. We cultured 112 stethoscopes by direct imprint on blood agar to estimate the prevalence of potentially pathogenic microorganisms. Forty-eight (47%) produced 50 potentially pathogenic microorganisms; from these, 43 (86%) were Staphylococcus aureus, of which 18 (42%) were(More)
BACKGROUND An association exists between water of poor quality and health care-associated infections. Copper shows microbiocidal action on dry surfaces; it is necessary to evaluate its antimicrobial effect against organisms in aqueous solution. OBJECTIVE The objective was to determine the in vitro antimicrobial activity of copper against common nosocomial(More)
BACKGROUND In developing countries, intravenous liquids are mixed and administered by nurses, sometimes under suboptimal infection control conditions. We hypothesized that outbreaks of infusate-associated neonatal bacteremias are common, and we evaluated whether they can be detected by vigilant microbiologic surveillance of infusates. METHODS We studied(More)
OBJECTIVE As Klebsiella, Enterobacter and Serratia are capable of growth in i.v. fluids and these bacteria are commonly implicated in nosocomial bacteremia, a control strategy through microbiological surveillance of in-use parenteral solutions is proposed. MATERIAL AND METHODS A second level general teaching hospital, serving low-income patients. Through(More)
OBJECTIVE To assess the growth patterns of selected organisms in common parenteral solutions, in order to ascertain implications for nosocomial bacteremia. DESIGN A microbial suspension of approximately 300 CFU/mL was sequentially inoculated into common parenteral infusions from three different manufacturers and incubated at room temperature. Initially,(More)
BACKGROUND Parenteral infusions can be contaminated during administration (extrinsic contamination). A previous survey found that extrinsic contamination was not uncommon in a hospital in Mexico with lapses in aseptic techniques. To determine whether this problem exists in other similar institutions, we undertook a multi-institutional study. METHODS We(More)