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Phenotypic Variation as an Important Aspect of Staphylococcal Pathogenesis . (2024)
Journal Article
Morrison, D. (in press). Phenotypic Variation as an Important Aspect of Staphylococcal Pathogenesis . Frontiers in Cellular and Infection Microbiology,

An editorial which frames the Research Topic's aims and objectives placing its findings in a broader context. Staphylococcus aureus and coagulase-negative staphylococci are medically important pathogens known for a pronounced phenotypic variabili... Read More about Phenotypic Variation as an Important Aspect of Staphylococcal Pathogenesis ..

A global multinational survey of cefotaxime-resistant coliforms in urban wastewater treatment plants (2020)
Journal Article
Marano, R. B., Fernandes, T., Manaia, C. M., Nunes, O., Morrison, D., Berendonk, T. U., …Cytryn, E. (2020). A global multinational survey of cefotaxime-resistant coliforms in urban wastewater treatment plants. Environment International, 144, Article 106035. https://doi.org/10.1016/j.envint.2020.106035

The World Health Organization Global Action Plan recommends integrated surveillance programs as crucial strategies for monitoring antibiotic resistance. Although several national surveillance programs are in place for clinical and veterinary settings... Read More about A global multinational survey of cefotaxime-resistant coliforms in urban wastewater treatment plants.

Tracking Staphylococcus aureus in the intensive care unit using Whole-Genome Sequencing (2019)
Journal Article
Dancer, S. J., Adams, C. E., Smith, J., Pichon, B., Kearns, A., & Morrison, D. (2019). Tracking Staphylococcus aureus in the intensive care unit using Whole-Genome Sequencing. Journal of Hospital Infection, 103(1), 13-20. https://doi.org/10.1016/j.jhin.2019.04.016

Background: Staphylococcus aureus remains an important bacterial pathogen worldwide. This study utilized known staphylococcal epidemiology to track S. aureus between different ecological reservoirs in one ten-bed intensive care unit (ICU). Methods... Read More about Tracking Staphylococcus aureus in the intensive care unit using Whole-Genome Sequencing.

Typing of methicillin resistant and sensitive Staphylococcus aureus isolated from Tamilnadu, India using DNA fingerprints by pulsed-field gel electrophoresis (2014)
Journal Article
Rajaduraipandi, K., Morrison, D., Mani, M., Nambirajan, G., Panneerselvam, K., Shobana, S., …Manikandan, P. (2014). Typing of methicillin resistant and sensitive Staphylococcus aureus isolated from Tamilnadu, India using DNA fingerprints by pulsed-field gel electrophoresis. Acta Biologica Szegediens, 58(2), 171-177

MRSA infection is alarming particularly in hospital set ups/community. We typed 43 isolates of Staphylococcus aureus (MRSA and MSSA) based on genomic DNA restriction fragment length polymorphisms (RFLPs). The genomic DNA of the test isolates was dige... Read More about Typing of methicillin resistant and sensitive Staphylococcus aureus isolated from Tamilnadu, India using DNA fingerprints by pulsed-field gel electrophoresis.

Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) in Poland: further evidence for the changing epidemiology of MRSA. (2008)
Journal Article
Bogut, A., Kozioł-Montewka, M., Baranowicz, I., Józ’wiak, L., Al-Doori, Z., Morrison, D., …Ksia˛z’ek, A. (2007). Community-acquired methicillin-resistant
Staphylococcus aureus (CA-MRSA) in Poland:
further evidence for the changing epidemiology
of MRSA. The new microbiologica. 31. . 229-234. . ISSN 1121-7138.

This study reports the isolation of CA-MRSA strain which was found to colonize the nasal mucosa of a patient undergoing haemodialysis treatment. The MRSA was subjected to molecular analysis by Pulsed Field Gel Electrophoresis (PFGE), multiplex PCR as... Read More about Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) in Poland: further evidence for the changing epidemiology of MRSA..

Usefulness of mec-associated direct repeat unit (dru) typing in the epidemiological analysis of highly clonal methicillin-resistant Staphylococcus aureus in Scotland (2008)
Journal Article
Goering, R., Morrison, D., Al-Doori, Z., Edwards, G., & Gemmell, C. (2008). Usefulness of mec-associated direct repeat unit (dru) typing in the epidemiological analysis of highly clonal methicillin-resistant Staphylococcus aureus in Scotland. Clinical Microbiology and Infection, 14(10), 964-969. https://doi.org/10.1111/j.1469-0691.2008.02073.x

The incidence of the epidemic methicillin-resistant Staphylococcus aureus (EMRSA) strains EMRSA-15 and EMRSA-16 in Scotland has increased dramatically, now accounting for c. 70% and c. 20% of isolates, respectively. Epidemiological tracking of these... Read More about Usefulness of mec-associated direct repeat unit (dru) typing in the epidemiological analysis of highly clonal methicillin-resistant Staphylococcus aureus in Scotland.

A European laboratory network for sequence-based typing of methicillin-resistant Staphylococcus Aureus (MRSA) as a communication platform between human and veterinary medicine - an update on SeqNet.org (2008)
Journal Article
Friedrich, A. W., Witte, W., De Lencastre, H., Hryniewicz, W., Scheres, J., Westh, H., & SeqNet.Org participants. (2008). A European laboratory network for sequence-based typing of methicillin-resistant Staphylococcus Aureus (MRSA) as a communication platform between human and veterinary medicine - an update on SeqNet.org. Eurosurveillance, 13(4-6), https://doi.org/10.2807/ese.13.19.18862-en

No abstract available.

Detection of meticillin-resistant Staphylococcus aureus and Panton-Valentine leukocidin directly from clinical samples and the development of a multiplex assay using real-time polymerase chain reaction (2008)
Journal Article
Renwick, L., Hardie, A., Girvan, E. K., Smith, M., Leadbetter, G., Claas, E., …Templeton, K. E. (2008). Detection of meticillin-resistant Staphylococcus aureus and Panton-Valentine leukocidin directly from clinical samples and the development of a multiplex assay using real-time polymerase chain reaction. European Journal of Clinical Microbiology and Infectious Diseases, 27(9), 791-796. https://doi.org/10.1007/s10096-008-0503-9

Meticillin-resistant Staphylococcus aureus (MRSA) is a major pathogen responsible for significant numbers of healthcare-associated infections and isolates containing Panton-Valentine leukocidin (PVL) that cause severe skin infections are emerging as... Read More about Detection of meticillin-resistant Staphylococcus aureus and Panton-Valentine leukocidin directly from clinical samples and the development of a multiplex assay using real-time polymerase chain reaction.

Scalded Skin Syndrome Caused by a Methicillin Sensitive Staphylococcus aureus of a type not commonly associated with exfoliative toxins in Scotland (2007)
Journal Article
Soliman, R. S., Morrison, D., Husselbee, K., & Phillips, G. (2007). Scalded Skin Syndrome Caused by a Methicillin Sensitive Staphylococcus aureus of a type not commonly associated with exfoliative toxins in Scotland. Scottish Medical Journal, 52, 53-53. https://doi.org/10.1258/rsmsmj.52.4.53a

A three-year-old boy was admitted to the hospital with a three-day history of chickenpox and a one-day history of fever and enlarging skin lesions on his chest, trunk, and around his neck. The lesions were enlarged and skin peeling over the chest wal... Read More about Scalded Skin Syndrome Caused by a Methicillin Sensitive Staphylococcus aureus of a type not commonly associated with exfoliative toxins in Scotland.

Characterisation of Staphylococcus aureus nasal and skin carriage among patients undergoing haemodialysis treatment. (2007)
Journal Article
Bogut, A., Kozioł-Montewka, M., Baranowicz, I., Jóźwiak, L., Ksiązek, A., Al-Doori, Z., …Paluch-Oleś, J. (2007). Characterisation of Staphylococcus aureus nasal
and skin carriage among patients undergoing
haemodialysis treatment. The new microbiologica. 30. . 149-154. . ISSN 1121-7138.

The aim of the study was to investigate the rate of Staphylococcus aureus nasal and skin carriage in patients undergoing haemodialysis. The cultured staphylococcal isolates were subsequently characterized by molecular methods. The study group compris... Read More about Characterisation of Staphylococcus aureus nasal and skin carriage among patients undergoing haemodialysis treatment..

Supplementary biochemical tests useful for the differentiation of oxidase positive staphylococci (2007)
Journal Article
Stepanović, S., Dakić, I., Hauschild, T., Vuković, D., Morrison, D., Ježek, P., …Petráš, P. (2007). Supplementary biochemical tests useful for the differentiation of oxidase positive staphylococci. Systematic and Applied Microbiology, 30(4), 316-318. https://doi.org/10.1016/j.syapm.2006.11.002

Differentiation of the oxidase positive staphylococci, Staphylococcus sciuri, Staphylococcus lentus, Staphylococcus vitulinus and Staphylococcus fleurettii, based on tributyrin, urease, caseinase, gelatinase and DNase activity is described. These tes... Read More about Supplementary biochemical tests useful for the differentiation of oxidase positive staphylococci.

Evaluation of Phenotypic and Molecular Methods for Detection of Oxacillin Resistance in Members of the Staphylococcus sciuri Group. (2006)
Journal Article
Stepanović, S., Hauschild, T., Dakić, I., Al-Doori, Z., Svabic-Vlahovic, M., Ranin, L., & Morrison, D. (2006). Evaluation of Phenotypic and Molecular Methods for Detection of Oxacillin Resistance in Members of the Staphylococcus sciuri Group. Journal of Clinical Microbiology, 44, 934-937. https://doi.org/10.1128/JCM.44.3.934-937.2006

In this paper we report on an experimental evaluation of phenotypic and molecular methods as means for the detection of oxacillin resistance in members of the Staphylococcus sciuri group. A total of 109 S. sciuri group member isolates (92 S. sciuri i... Read More about Evaluation of Phenotypic and Molecular Methods for Detection of Oxacillin Resistance in Members of the Staphylococcus sciuri Group..

Identification and molecular characterization of mannitol salt positive, coagulase-negative staphylococci from nasal samples of medical personnel and students. (2006)
Journal Article
Shittu, A., Lin, J., Morrison, D., & Kolawole, D. (2006). Identification and molecular characterization of mannitol salt positive, coagulase-negative staphylococci from nasal samples of medical personnel and students. Journal of Medical Microbiology, 55, 317-324. https://doi.org/10.1099/jmm.0.46072-0

The identification of mannitol salt positive, coagulase-negative staphylococci (CNS) is often disregarded when Staphylococcus aureus is screened in clinical samples using mannitol salt agar. However, the emergence of CNS as important human pathogens... Read More about Identification and molecular characterization of mannitol salt positive, coagulase-negative staphylococci from nasal samples of medical personnel and students..

Spread of a single multiresistant methicillin-resistant Staphylococcus aureus clone carrying a variant of staphylococcal cassette chromosome mec type III isolated in a university hospital (2006)
Journal Article
Szczepanik, A., Kozioł-Montewka, M., Al-Doori, Z., Morrison, D., & Kaczor, D. (2007). Spread of a single multiresistant methicillin-resistant Staphylococcus aureus clone carrying a variant of staphylococcal cassette chromosome mec type III isolated in a university hospital. European Journal of Clinical Microbiology and Infectious Diseases, 26(1), 29-35. https://doi.org/10.1007/s10096-006-0237-5

The purpose of the study was the molecular characterization of methicillin-resistant Staphylococcus aureus (MRSA) isolates cultured from patients treated in seven wards of a university hospital in Lublin, Poland, over a 14-month period. Eleven nosoco... Read More about Spread of a single multiresistant methicillin-resistant Staphylococcus aureus clone carrying a variant of staphylococcal cassette chromosome mec type III isolated in a university hospital.

Molecular identification and characterization of mannitol-negative methicillin-resistant Staphylococcus aureus (2006)
Journal Article
Shittu, A., Lin, J., & Morrison, D. (2007). Molecular identification and characterization of mannitol-negative methicillin-resistant Staphylococcus aureus. Diagnostic Microbiology and Infectious Disease, 57(1), 93-95. https://doi.org/10.1016/j.diagmicrobio.2006.05.004

We report on the isolation, molecular identification, and characterization of 5 mannitol-negative methicillin-resistant Staphylococcus aureus (MRSA) from clinical samples in KwaZulu-Natal (KZN) province, South Africa. Identification based on phenotyp... Read More about Molecular identification and characterization of mannitol-negative methicillin-resistant Staphylococcus aureus.

Isolation and Molecular Characterization of Staphylococcus sciuri in the Hospital Environment. (2005)
Journal Article
Dakić, I., Morrison, D., Vukovic, D., Savic, B., Shittu, A., Ježek, P., …Stepanović, S. (2005). Isolation and Molecular Characterization of Staphylococcus sciuri in the Hospital Environment. Journal of Clinical Microbiology, 43, 2782-2785. https://doi.org/10.1128/JCM.43.6.2782-2785.2005

Staphylococcus sciuri is a principally animal-associated bacterial species, but its clinical relevance for humans is increasing. Our study aimed to provide the first insight into the prevalence of this bacterium in a hospital environment. A 3-month s... Read More about Isolation and Molecular Characterization of Staphylococcus sciuri in the Hospital Environment..

Identification and Characterization of Clinical Isolates of Members of the Staphylococcus sciuri Group. (2005)
Journal Article
Stepanovic, S., Dakić, I., Morrison, D., Hauschild, T., Jezek, P., Petras, P., …Devriese, L. A. (2005). Identification and Characterization of Clinical Isolates of Members of the Staphylococcus sciuri Group. Journal of Clinical Microbiology, 43, 956-958. https://doi.org/10.1128/JCM.43.2.956-958.2005

A total of 28 staphylococcal isolates from human clinical specimens belonging to the Staphylococcus sciuri group were identified and characterized. The API Staph and ID32 STAPH correctly identified S. sciuri and S. lentus but not S. vitulinus strains... Read More about Identification and Characterization of Clinical Isolates of Members of the Staphylococcus sciuri Group..

The discovery of a multi-resistant Staphylococcus haemolyticus clone in the hospital and community environment in south western Nigeria. (2005)
Journal Article
Shittu, A., Lin, J., Morrison, D. & Kolawole, D. (2004). The discovery of a multi-resistant Staphylococcus haemolyticus clone in the hospital and community environment in south western Nigeria. Ostomy/wound management. 51. . 67-70. . ISSN 0889-5899.

Among clinically significant isolates of coagulase negative staphylococci, Staphylococcus haemolyticus is ranked second after Staphylococcus epidermidis. It has been associated with septicemia in newborns and various infections in persons with compro... Read More about The discovery of a multi-resistant Staphylococcus haemolyticus clone in the hospital and community environment in south western Nigeria..

Survey of Genes Encoding Staphylococcal Enterotoxins, Toxic Shock Syndrome Toxin 1, and Exfoliative Toxins in Members of the Staphylococcus sciuri Group. (2005)
Journal Article
Dakić, I., Vukovic, D., Stepanović, S., Hauschild, T., Ježek, P., Petras, P., & Morrison, D. (2005). Survey of Genes Encoding Staphylococcal Enterotoxins, Toxic Shock Syndrome Toxin 1, and Exfoliative Toxins in Members of the Staphylococcus sciuri Group. Journal of Clinical Microbiology, 43, 4875-4876. https://doi.org/10.1128/JCM.43.9.4875-4876.2005

Genes encoding staphylococcal enterotoxins (sea to see, seg, and seh), toxic shock syndrome toxin 1 (tst), and exfoliative toxins (eta and etb) were not detected in a large panel of 48 Staphylococcus sciuri group isolates tested. This strongly sugges... Read More about Survey of Genes Encoding Staphylococcal Enterotoxins, Toxic Shock Syndrome Toxin 1, and Exfoliative Toxins in Members of the Staphylococcus sciuri Group..