S Elsayed

Summary

Affiliation: University of Calgary
Country: Canada

Publications

  1. ncbi Streptococcus equi subspecies equi (Lancefield group C) meningitis in a child
    S Elsayed
    Department of Microbiology, Calgary Laboratory Services, 1638 10th Avenue SW, Calgary, Alberta, Canada T3C 0J5
    Clin Microbiol Infect 9:869-72. 2003
  2. pmc Human infection caused by Clostridium hathewayi
    Sameer Elsayed
    University of Calgary, Calgary, Alberta, Canada
    Emerg Infect Dis 10:1950-2. 2004
  3. ncbi Intrauterine contraceptive device-associated pelvic actinomycosis caused by Actinomyces urogenitalis
    S Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary Calgary Health Region, Calgary, Alta, Canada
    Anaerobe 12:67-70. 2006
  4. ncbi Isolation and 16S ribosomal RNA gene sequence-based identification of Clostridium scindens from an intra-abdominal abscess
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
    Anaerobe 12:13-6. 2006
  5. pmc Bacteremia caused by Clostridium intestinale
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada
    J Clin Microbiol 43:2018-20. 2005
  6. pmc Mycobacterium haemophilum osteomyelitis: case report and review of the literature
    Sameer Elsayed
    BMC Infect Dis 6:70. 2006
  7. pmc Use of molecular beacon probes for real-time PCR detection of Plasmodium falciparum and other plasmodium species in peripheral blood specimens
    Sameer Elsayed
    Calgary Laboratory Services, 9 3535 Research Rd NW, Calgary, Alberta, Canada
    J Clin Microbiol 44:622-4. 2006
  8. pmc Species-level molecular identification of invasive "Streptococcus milleri" group clinical isolates by nucleic acid sequencing in a centralized regional microbiology laboratory
    Peter Daley
    Division of Microbiology, Calgary Laboratory Services, 9 3535 Research Rd NW, Calgary, Alberta, Canada T2L 2K8
    J Clin Microbiol 43:2987-8. 2005
  9. pmc Bacteremia caused by Janibacter melonis
    Sameer Elsayed
    Department of Pathology, University of Calgary, Calgary, Alberta, Canada
    J Clin Microbiol 43:3537-9. 2005
  10. pmc Nocardia cyriacigeorgica septicemia
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Alberta, Canada
    J Clin Microbiol 44:280-2. 2006

Collaborators

Detail Information

Publications43

  1. ncbi Streptococcus equi subspecies equi (Lancefield group C) meningitis in a child
    S Elsayed
    Department of Microbiology, Calgary Laboratory Services, 1638 10th Avenue SW, Calgary, Alberta, Canada T3C 0J5
    Clin Microbiol Infect 9:869-72. 2003
    ..We present a case of Streptococcus equi subsp. equi meningitis in a young boy. This case represents the first report in the literature of meningitis caused by this organism, as far as we know...
  2. pmc Human infection caused by Clostridium hathewayi
    Sameer Elsayed
    University of Calgary, Calgary, Alberta, Canada
    Emerg Infect Dis 10:1950-2. 2004
    ..This report is the first of human infection caused by this microorganism...
  3. ncbi Intrauterine contraceptive device-associated pelvic actinomycosis caused by Actinomyces urogenitalis
    S Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary Calgary Health Region, Calgary, Alta, Canada
    Anaerobe 12:67-70. 2006
    ..Diagnosis was confirmed by 16S ribosomal RNA gene sequencing of bacterial colonies growing from the extracted device. This is the first documented report of human infection caused by this micro-organism...
  4. ncbi Isolation and 16S ribosomal RNA gene sequence-based identification of Clostridium scindens from an intra-abdominal abscess
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
    Anaerobe 12:13-6. 2006
    ..This is the first documented report of human infection caused by this micro-organism...
  5. pmc Bacteremia caused by Clostridium intestinale
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada
    J Clin Microbiol 43:2018-20. 2005
    ..The bacterium was definitively identified via 16S rRNA gene sequencing. This is the first report, in the world literature, of human infection caused by this microorganism...
  6. pmc Mycobacterium haemophilum osteomyelitis: case report and review of the literature
    Sameer Elsayed
    BMC Infect Dis 6:70. 2006
    ..Osteomyelitis, while rarely documented, appears to be an important complication of infection with M. haemophilum in these patients...
  7. pmc Use of molecular beacon probes for real-time PCR detection of Plasmodium falciparum and other plasmodium species in peripheral blood specimens
    Sameer Elsayed
    Calgary Laboratory Services, 9 3535 Research Rd NW, Calgary, Alberta, Canada
    J Clin Microbiol 44:622-4. 2006
    ....
  8. pmc Species-level molecular identification of invasive "Streptococcus milleri" group clinical isolates by nucleic acid sequencing in a centralized regional microbiology laboratory
    Peter Daley
    Division of Microbiology, Calgary Laboratory Services, 9 3535 Research Rd NW, Calgary, Alberta, Canada T2L 2K8
    J Clin Microbiol 43:2987-8. 2005
    ..A detailed understanding of their pathogenesis in human infection has only recently been facilitated by the use of molecular methods to study this group of organisms...
  9. pmc Bacteremia caused by Janibacter melonis
    Sameer Elsayed
    Department of Pathology, University of Calgary, Calgary, Alberta, Canada
    J Clin Microbiol 43:3537-9. 2005
    ..Our patient's blood culture isolate was identified by partial 16S rRNA gene sequencing. This is the first report of the recovery of Janibacter species from humans...
  10. pmc Nocardia cyriacigeorgica septicemia
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Alberta, Canada
    J Clin Microbiol 44:280-2. 2006
    ..In both instances, diagnosis was rapidly facilitated by 16S rRNA gene sequencing of blood culture isolates. These constitute the first confirmed reports of Nocardia cyriacigeorgica bloodstream infection in humans...
  11. pmc Gemella bergeriae endocarditis diagnosed by sequencing of rRNA genes in heart valve tissue
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada
    J Clin Microbiol 42:4897-900. 2004
    ..Diagnosis was confirmed by sequencing of 16S rRNA genes in heart valve tissue. This is the first report of Gemella endocarditis confirmed by molecular detection of bacterial genes in heart valve tissue...
  12. pmc Clostridium glycolicum bacteremia in a bone marrow transplant patient
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada
    J Clin Microbiol 45:1652-4. 2007
    ..The bacterium was identified by 16S rRNA gene sequencing. This is the first published report of the recovery of this organism from human clinical material...
  13. pmc Bacteremia caused by Clostridium symbiosum
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Alberta, Canada
    J Clin Microbiol 42:4390-2. 2004
    ..We describe a fatal case of Clostridium symbiosum bacteremia in a 70-year-old man with metastatic colon cancer. Our report is the first, in the world literature, of human infection caused by this microorganism...
  14. ncbi Emerging gram-positive bacterial infections
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, 9, 3535 Research Road NW, Calgary, Alberta T2L 2K8, Canada
    Clin Lab Med 24:587-603, v. 2004
    ..This review focuses on the clinical and microbiologic aspects of key emerging infections caused by this group of microorganisms...
  15. pmc Human case of lobomycosis
    Sameer Elsayed
    Calgary Laboratory Services, Calgary, Alberta, Canada
    Emerg Infect Dis 10:715-8. 2004
    ..Our case represents the first published report of imported human lobomycosis in Canada and the fifth in an industrialized country...
  16. ncbi Comparison of direct selective versus nonselective agar media plus LIM broth enrichment for determination of group B streptococcus colonization status in pregnant women
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta
    Arch Pathol Lab Med 127:718-20. 2003
    ....
  17. ncbi Development and validation of a molecular beacon probe-based real-time polymerase chain reaction assay for rapid detection of methicillin resistance in Staphylococcus aureus
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada
    Arch Pathol Lab Med 127:845-9. 2003
    ..A rapid, real-time, duplex, fluorescent molecular beacon probe-based polymerase chain reaction (PCR) assay was recently developed for the detection of methicillin-resistant Staphylococcus aureus...
  18. ncbi Utility of Gram stain for the microbiological analysis of burn wound surfaces
    Sameer Elsayed
    Division of Microbiology, Calgary Laboratory Services, Calgary, Alberta, Canada
    Arch Pathol Lab Med 127:1485-8. 2003
    ..To our knowledge, the utility of adding a Gram-stained slide in this context has not been evaluated previously...
  19. pmc Novel multiplex PCR assay for simultaneous identification of community-associated methicillin-resistant Staphylococcus aureus strains USA300 and USA400 and detection of mecA and Panton-Valentine leukocidin genes, with discrimination of Staphylococcus aure
    Kunyan Zhang
    Centre for Antimicrobial Resistance, Calgary Health Region, Calgary, Alberta, Canada
    J Clin Microbiol 46:1118-22. 2008
    ..aureus strains, S. aureus strains from coagulase-negative staphylococci, and staphylococci from other bacteria...
  20. ncbi Population-based epidemiological study of infections caused by carbapenem-resistant Pseudomonas aeruginosa in the Calgary Health Region: importance of metallo-beta-lactamase (MBL)-producing strains
    Kevin B Laupland
    Department of Medicine, University of Calgary, Centre for Anti microbial Resistance, and Calgary Health Region, Calgary, Alberta, Canada
    J Infect Dis 192:1606-12. 2005
    ....
  21. pmc Novel multiplex PCR assay for detection of the staphylococcal virulence marker Panton-Valentine leukocidin genes and simultaneous discrimination of methicillin-susceptible from -resistant staphylococci
    Jo Ann McClure
    Centre for Antimicrobial Resistance, Calgary Health Region Calgary Laboratory Services University of Calgary, Calgary, Alberta, Canada
    J Clin Microbiol 44:1141-4. 2006
    ..This assay is simple, rapid, and accurate and offers the potential for prompt detection of newly emerging community-associated methicillin-resistant Staphylococcus aureus...
  22. doi Coexistence of Panton-Valentine leukocidin-positive and -negative community-associated methicillin-resistant Staphylococcus aureus USA400 sibling strains in a large Canadian health-care region
    Kunyan Zhang
    Centre for Antimicrobial Resistance, Calgary Health Region Calgary Laboratory Services University of Calgary, Calgary, Alberta, Canada
    J Infect Dis 197:195-204. 2008
    ..This study provides direct evidence that PVL genes are not necessarily the key determinants associated with the increasing dissemination of CA-MRSA strains, suggesting that the genomic milieu may play a greater role in this regard...
  23. doi Caenorhabditis elegans as a host model for community-associated methicillin-resistant Staphylococcus aureus
    K Wu
    Centre for Antimicrobial Resistance, Calgary Health Region, Calgary Laboratory Services, University of Calgary, AB, Canada
    Clin Microbiol Infect 16:245-54. 2010
    ..Our findings demonstrate that community-associated MRSA strains are more pathogenic than hospital-associated MRSA in the C. elegans model and support the use of this model for studying the virulence of S. aureus strains...
  24. pmc New method for laboratory detection of AmpC beta-lactamases in Escherichia coli and Klebsiella pneumoniae
    K Nasim
    Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada
    J Clin Microbiol 42:4799-802. 2004
    ..coli and K. pneumoniae. This new method is easier to perform and interpret and allows for testing of multiple isolates on a single plate...
  25. pmc Novel multiplex PCR assay for characterization and concomitant subtyping of staphylococcal cassette chromosome mec types I to V in methicillin-resistant Staphylococcus aureus
    Kunyan Zhang
    Centre for Antimicrobial Resistance, Calgary Health Region Calgary Laboratory Services University of Calgary, Calgary, Alberta, Canada T2L 2K8
    J Clin Microbiol 43:5026-33. 2005
    ..This novel assay offers a rapid, simple, and feasible method for SCCmec typing of MRSA, and may serve as a useful tool for clinicians and epidemiologists in their efforts to prevent and control infections caused by this organism...
  26. pmc Novel staphylococcal cassette chromosome mec type, tentatively designated type VIII, harboring class A mec and type 4 ccr gene complexes in a Canadian epidemic strain of methicillin-resistant Staphylococcus aureus
    Kunyan Zhang
    Centre for Antimicrobial Resistance, Calgary Health Region Calgary Laboratory Services University of Calgary, Alberta, Canada
    Antimicrob Agents Chemother 53:531-40. 2009
    ....
  27. pmc Evaluation of StrepB carrot broth versus Lim broth for detection of group B Streptococcus colonization status of near-term pregnant women
    D L Church
    Division of Microbiology, Calgary Laboratory Services, Calgary Health Region and the University of Calgary, Calgary, Alta T2L 2K8, Canada
    J Clin Microbiol 46:2780-2. 2008
    ..3%, respectively. Improved diagnostic efficiency due to direct reporting of GBS cases based on an orange color change in the SCB decreased overall labor and material costs...
  28. pmc Association between handling of pet treats and infection with Salmonella enterica serotype newport expressing the AmpC beta-lactamase, CMY-2
    Johann D D Pitout
    Division of Microbiology, Calgary Laboratory Services and Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada
    J Clin Microbiol 41:4578-82. 2003
    ..enterica serotype Newport strains in Canada, this study illustrates the necessity of rapid and accurate laboratory-based surveillance in the identification of novel types of antimicrobial resistance...
  29. ncbi A regional centralized microbiology service in Calgary for the rapid diagnosis of malaria
    Deirdre L Church
    Calgary Laboratory Services, Calgary, Alberta, Canada T3C 0J5
    Arch Pathol Lab Med 127:687-93. 2003
    ..A regional centralized laboratory service for the rapid diagnosis of malaria was implemented 3 years ago in May 1999 within the Division of Microbiology, Calgary Laboratory Services...
  30. pmc Molecular epidemiology of metallo-beta-lactamase-producing Pseudomonas aeruginosa in the Calgary Health Region: emergence of VIM-2-producing isolates
    Johann D D Pitout
    Division of Microbiology, Calgary Laboratory Services, 9, 3535 Research Road NW, Calgary, Alberta, Canada T2L 2K8
    J Clin Microbiol 45:294-8. 2007
    ..Our findings suggest that CR and dissemination of MBL clusters among P. aeruginosa populations in large geographic healthcare regions are dynamic processes that require continuous molecular surveillance...
  31. ncbi DNA sequence-based detection of group B Streptococcus directly from heart valve tissue in a patient with culture-negative endocarditis
    Kelly Guggisberg
    Department of Pathology and Laboratory Medicine, Calgary, Alberta, Canada
    Scand J Infect Dis 38:931-4. 2006
    ..To our knowledge, this is the first report of DNA sequence-based detection of this organism directly from a heart valve...
  32. pmc New quadriplex PCR assay for detection of methicillin and mupirocin resistance and simultaneous discrimination of Staphylococcus aureus from coagulase-negative staphylococci
    Kunyan Zhang
    Center for Antimicrobial Resistance, Calgary Health Region Calgary Laboratory Services University of Calgary, Alberta, Canada T2L 2K8
    J Clin Microbiol 42:4947-55. 2004
    ....
  33. pmc Burn wound infections
    Deirdre Church
    Calgary Laboratory Services, 9 3535 Research Rd N W, Calgary, Alberta, Canada T2L 2K8
    Clin Microbiol Rev 19:403-34. 2006
    ..Improved outcomes for severely burned patients have been attributed to medical advances in fluid resuscitation, nutritional support, pulmonary and burn wound care, and infection control practices...
  34. pmc Community-wide outbreaks of clonally related CTX-M-14 beta-lactamase-producing Escherichia coli strains in the Calgary health region
    Johann D D Pitout
    Division of Microbiology, Calgary Laboratory Services, 9 3535 Research Rd NW, Calgary, Alberta T2L 2K8, Canada
    J Clin Microbiol 43:2844-9. 2005
    ..Further studies are warranted to investigate whether community-onset diseases caused by ESBL-producing E. coli are related to a point source or transmission within the community...
  35. ncbi Screening for Giardia/Cryptosporidium infections using an enzyme immunoassay in a centralized regional microbiology laboratory
    Deirdre Church
    Calgary Laboratory Services, Calgary, Alberta, Canada
    Arch Pathol Lab Med 129:754-9. 2005
    ..In April 1999, a microplate enzyme immunoassay (EIA) (ProSpecT G/C, Remel, Inc, Lenexa, Kan) for routine screening of all stool specimens was implemented...
  36. pmc Evaluation of the OSOM Trichomonas rapid test versus wet preparation examination for detection of Trichomonas vaginalis vaginitis in specimens from women with a low prevalence of infection
    L Campbell
    Calgary Laboratory Services, 9 3535 Research Rd NW, Calgary, Alberta, Canada T2L 2K8
    J Clin Microbiol 46:3467-9. 2008
    ..7, 100, 99.9, 100, and 99.9%, respectively. The implementation of OSOM Trich would decrease labor costs...
  37. ncbi Invasive Candida species infections: a 5 year population-based assessment
    Kevin B Laupland
    Department of Medicine, Calgary Health Region and University of Calgary, Calgary, Alberta, Canada
    J Antimicrob Chemother 56:532-7. 2005
    ..The objective of this study was to define the occurrence of, risk factors for, and antifungal susceptibilities of invasive Candida species infections in a large Canadian health region...
  38. ncbi Adequacy of empirical antifungal therapy and effect on outcome among patients with invasive Candida species infections
    Michael D Parkins
    Department of Medicine, Calgary Health Region and University of Calgary, Calgary, Alberta, Canada
    J Antimicrob Chemother 60:613-8. 2007
    ..We sought to assess the adequacy of empirical therapy and its effect on mortality in invasive Candida species infections...
  39. ncbi Multilocus sequence typing of serotype III group B streptococcus and correlation with pathogenic potential
    H Dele Davies
    Department of Microbiology, and Child Health Research Unit, Alberta Children s Hospital, University of Calgary, Canada
    J Infect Dis 189:1097-102. 2004
    ..89 microg/mL and 0.39 microg/mL, respectively) for ST-19 and ST-17 (P=.86). The close association of genomic strain 2603V/R (serotype V) with ST-19 suggests that the phenomenon of capsule switching may have occurred...
  40. ncbi A rare case of pleuropulmonary infection and septic shock associated with Enterococcus faecium endocarditis
    Paul MacEachern
    Department of Medicine, University of Calgary, Calgary, Alta, Canada
    J Infect 50:84-8. 2005
    ..Enterococci rarely cause pleuropulmonary infections. A novel case of definitively diagnosed nosocomial Enterococcus faecium pneumonia, empyema, and endocarditis associated with septic shock is reported...
  41. ncbi Trichuris trichiura worm infection
    Sameer Elsayed
    Department of Pathology and Laboratory Medicine, Division of Microbiology, University of Calgary, Calgary, Alberta, Canada
    Gastrointest Endosc 60:990-1. 2004
  42. pmc Outbreak in Alberta of community-acquired (USA300) methicillin-resistant Staphylococcus aureus in people with a history of drug use, homelessness or incarceration
    Mark Gilbert
    Canadian Field Epidemiology Program, Public Health Agency of Canada, Ottawa, Ont
    CMAJ 175:149-54. 2006
    ..In 2004, an outbreak was identified in the Calgary Health Region (CHR)...
  43. ncbi Positive Clostridium difficile stool assay in a patient with fatal C. sordellii infection
    Sameer Elsayed
    N Engl J Med 355:1284-5. 2006