Personal profile
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Research interests
Dr Lewis C. E. Mason is primarily interested in research regarding the evolution and spread of antimicrobial resistant, sexually transmissible bacterial pathogens. He employs both wet-laboratory experimentation and computational bioinformatics (microbial genomics, genomic epidemiology, and phylogenetics) in his research.
He focusses on both sexually transmissible enteric bacterial pathogens (Shigella spp., Campylobacter spp., Salmonella spp., several pathotypes of Escherichia coli) and traditionally-considered sexually transmissible pathogens (Neisseria gonorrhoeae, Treponema pallidum, Chlamydia trachomatis, etc.). Infectious diseases of particular interest to him are shigellosis, campylobacteriosis, salmonellosis, syphilis, gonorrhoea, chlamydia, among others.
Foodborne and waterborne antimicrobial resistant bacterial pathogens of interest to him also include Klebsiella pneumoniae, Pseudomonas aeruginosa, Listeria monocytogenes, and Helicobacter pylori.
His expertise and research interests also span across several One Health topics, particularly in regards to bacterial antimicrobial resistance (AMR) and interactions among the environment, food, water, animals, and humans.
Commonly used techniques in his research group include phylogenetic tree construction, antimicrobial susceptibility testing (AST), microbial genomics, long-read and short-read sequencing, microbial genome assembly, antimicrobial resistance gene presence/absence analyses, AMR and virulence plasmid dynamic analyses, among others.
He values both national and international collaborative activities across the entirety of bacteriology research. He ensures that his research is directly beneficial for patient and public health by involving colleagues with clinical expertise in his research, and the views of patients and the public via patient and public involvement and engagement (PPIE) activities, from the conceptualisation stage of research onwards through to the output stage.
He is currently accepting correspondence from prospective MSc(Res) and PhD students, prospective collaborators, and media representatives ([email protected]).
Related documents
Education/Academic qualification
Recognised by Advance HE as an Associate Fellow against Descriptor 1 of the UKPSF
Health, Bachelor, BSc (Hons) Biomedical Science [Medical Microbiology Specialism], University of Bradford
Health, Master, MSc Infection, Immunity, and Human Disease, University of Leeds
Health, Doctorate, PhD Medical Microbiology, University of Liverpool
Keywords
- Q Science (General)
- Bioinformatics
- Microbial Evolution
- Microbiology
- Genomics
- Phylogenetics
- Coding (Bash, R, Python)
- Epidemiology
- Bacteriology
- Infectious Disease
- Microbial genomics
- Sequencing
- QR180 Immunology
- Microbial Genomics
- Vaccines
- Genomic Epidemiology
- Bacteriology
- Shigella spp.
- Escherichia coli
- Campylobacter spp.
- Salmonella spp.
- Chlamydia
- Gonorrhoea
- Syphilis
- Mycoplasma genitalium
- Klebsiella spp.
- Pseudomonas spp.
- Antimicrobial Resistance
- AMR
- Antibiotics
- Antimicrobials
- Helicobacter pylori
- Neisseria gonorrhoeae
- Pseudomonas aeruginosa
- Listeria monocytogenes
- One Health
- Antimicrobial susceptibility testing (AST)
- RA0421 Public health. Hygiene. Preventive Medicine
- Antimicrobial Resistance
- AMR
- Antibiotic Resistance
- Sexually Transmissible Infections (STIs)
- Sexually Transmitted Infections (STIs)
- Sexually Transmitted Diseases (STDs)
- Public Health Interventions
- Public Health
- Epidemiology
- Gay, bisexual, and other men who have sex with men
- GBMSM
- MSM
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Collaborations and top research areas from the last five years
Projects
- 3 Finished
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Antimicrobial resistance plasmid characterisation in enteropathogenic Escherichia coli (EPEC)
Mason, L. (Researcher) & Fletcher, J. (PI)
1/09/18 → 1/02/19
Project: Research
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Sequence analyses of the proteobacterial antimicrobial compound efflux (PACE) family of antimicrobial resistance proteins
Mason, L. (Researcher) & Henderson, P. (PI)
1/01/20 → 1/08/20
Project: Research
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The genomic epidemiology of antimicrobial resistant sexually transmissible shigellosis
Mason, L. (Researcher), Baker, K. S. (PI) & Jenkins, C. (PI)
1/12/20 → 1/12/24
Project: Research
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The role of microbial genomics in delivering the UK’s national action plan for confronting antimicrobial resistance 2024–29
Johnson, T., Mason, L. C. E., Wilson, H. J., Price, J. R., Hopkins, K. L., Chattaway, M. A., Leanord, A., Francino Marti, O., Mayele-Tamina, R., Johnson, S., Flowers, P., van Schaik, W. & Baker, K. S., 4 Mar 2026, (E-pub ahead of print) In: The Lancet Microbe. 101372.Research output: Contribution to journal › Article › peer-review
Open Access -
The natural history of the emergence of sexually transmissible shigellosis
Mason, L. C. E., Jawed, F., Fruth, A., Vivancos, R., Jenkins, C. & Baker, K. S., Jan 2026, In: Microbial Genomics. 12, 1, 001607.Research output: Contribution to journal › Review article › peer-review
Open Access -
Sexually transmissible infections affecting the gastrointestinal tract: what gastroenterologists and hepatologists need to know
Richardson, D., Mitchell, H. D., Jenkins, C., Mason, L. C. E., Ewens, M., Rabuszko, L., Chessell, C., Williams, D., Fitzpatrick, C., Mohammed, O. K., Zucker, J., de Vries, H. J. & Baker, K. S., 12 Nov 2025, In: Frontline Gastroenterology. flgastro-2025-103321.Research output: Contribution to journal › Article › peer-review
Open AccessFile5 Downloads (Pure) -
Antimicrobial treatment options for extensively drug-resistant (XDR) shigellosis in men who have sex with men
Richardson, D., Rabuszko, L., Mason, L. C. E., De Silva, P. M., Khan, S., Mitchell, H. D., Jenkins, C. & Baker, K. S., 16 Oct 2025, In: Sexually Transmitted Infections. 101, 7, p. 487-489 3 p.Research output: Contribution to journal › Article › peer-review
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Using demographics of patients to inform treatment of shigellosis in England
Mason, L. C. E., Richardson, D., Charles, H., Simms, I., Mitchell, H. D., Manuel, R., Godbole, G., Jenkins, C. & Baker, K. S., Apr 2025, In: The Lancet Microbe. 6, 4, 101026.Research output: Contribution to journal › Comment/debate
Open Access
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Microbiology Society (External organisation)
Mason, L. (Member)
2016 → …Activity: Membership › Professional memberships
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Institute of Biomedical Science (External organisation)
Mason, L. (Member)
2026 → …Activity: Membership › Professional memberships
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British Society for Antimicrobial Chemotherapy (External organisation)
Mason, L. (Member)
2020 → …Activity: Membership › Professional memberships
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British Association for Sexual Health and HIV (External organisation)
Mason, L. (Member)
2020 → …Activity: Membership › Professional memberships
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Applied Microbiology International (External organisation)
Mason, L. (Member)
2020 → …Activity: Membership › Professional memberships
Prizes
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Journal of Medical Microbiology 'Most Promising Science' Poster Prize
Mason, L. (Recipient), 1 May 2021
Prize