Publications

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survival trends of staphylococcus aureus, pseudomonas aeruginosa, and clostridium perfringens in a sandy south florida beach.the search for alternative indicators of disease-risk from non-enteric pathogens at the beach revealed high densities of targeted bacteria. to explain the high numbers of potential non-enteric pathogens, staphylococcus aureus and pseudomonas aeruginosa, in beach sand, we investigated factors affecting their survival and distribution, as well as those of a potential fecal indicator, clostridium perfringens. results indicated greater s. aureus and p. aeruginosa survival and proliferation in steril ...201222516512
the application of peptide nucleic acid probes for rapid detection and enumeration of eubacteria, staphylococcus aureus and pseudomonas aeruginosa in recreational beaches of s. florida.a novel chemiluminescent in situ hybridization technique using peptide nucleic acids (pna) was adapted for the detection of bacteria in beach sand and recreational waters in south florida. the simultaneous detection and enumeration of eubacteria and the novel indicators, staphylococcus aureus and pseudomonas aeruginosa, was achieved within 6-8 h of processing. following 5 h of incubation on tsa, soybean peroxidase-labeled peptide nucleic acid probes (boston probes, boston, ma) targeting species- ...200415063055
paediatric infectious keratitis: a case series of 107 children presenting to a tertiary referral centre.corneal ulcers can result in severe visual impairment in children. the recent trends of paediatric microbial ulcerative keratitis in the usa are unknown. the purpose of this study is to report the risk factors, microbiological profile and treatment outcomes of paediatric microbial keratitis in south florida.201728298316
inhibition of quorum sensing-controlled virulence factor production in pseudomonas aeruginosa by south florida plant extracts.quorum sensing (qs) is a key regulator of virulence and biofilm formation in pseudomonas aeruginosa and other medically relevant bacteria. aqueous extracts of six plants, conocarpus erectus, chamaesyce hypericifolia, callistemon viminalis, bucida buceras, tetrazygia bicolor, and quercus virginiana, were examined in this study for their effects on p. aeruginosa virulence factors and the qs system. c. erectus, b. buceras, and c. viminalis caused a significant inhibition of lasa protease, lasb elas ...200817938186
microbial regulation in gorgonian corals.gorgonian corals possess many novel natural products that could potentially mediate coral-bacterial interactions. since many bacteria use quorum sensing (qs) signals to facilitate colonization of host organisms, regulation of prokaryotic cell-to-cell communication may represent an important bacterial control mechanism. in the present study, we examined extracts of twelve species of caribbean gorgonian corals, for mechanisms that regulate microbial colonization, such as antibacterial activity and ...201222822369
changes in antibiotic resistance in equine bacterial ulcerative keratitis (1991-2000): 65 horses.to document changes in antibiotic resistance of organisms in cases of equine bacterial ulcerative keratitis over a 10-year time period.200314641828
shifting trends in bacterial keratitis in south florida and emerging resistance to fluoroquinolones.to study the distribution, current trends, and patterns of resistance to antimicrobial agents of bacterial keratitis isolates in south florida.200010919897
bacterial pneumonia in hospitalized patients with hiv infection: the pulmonary complications, icu support, and prognostic factors of hospitalized patients with hiv (pip) study.to describe the causative organisms and factors associated with bacterial pneumonia and to assess its impact on the outcome of hospitalized patients with hiv.200010767233
infections in children with human immunodeficiency virus/acquired immunodeficiency syndrome: an autopsy study of 30 cases in south florida, 1990-1993.thirty autopsies performed on infants and children with hiv infection and/or aids were reviewed for the presence and type of infection. twenty-six (87%) demonstrated evidence of infection in addition to hiv at the time of postmortem examination. pathogenic bacterial infectious were the most frequently encountered, seen in 15 of the cases. nine of the 15 (60%) were due to gram-negative rods, most commonly pseudomonas aeruginosa. infections with gram-negative organisms often involved multiple orga ...19958597814
microbiological quality of selected recreational waters. 19816797820
the disinfection of swimming pool water. ii. a field study of the disinfection of public swimming pools. 19704985286
microbial keratitis in childhood.microbial keratitis occurs infrequently in childhood. the leading ocular predisposing factors are trauma and preexisting corneal disease. many of the age-related risk factors in adults play a minor role in children.19938437826
resistance of staphylococci to halogens as related to a swimming pool environment. 19684970354
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