Author

Sarah Gallichan

Liverpool School of Tropical MedicineORCID 0000-0001-8938-1628Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Microbiology· 2 Molecular Biology· 1

Signature Assays, Organisms & Methods

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Approach:experimental assay· 2 Organism:E. coli· 1 Approach:genetic perturbation / CRISPR· 1 Research Focus:host-pathogen & immune response· 1 Organism:human· 1 Assay:metagenomics· 1 Organism:mouse· 1 Research Focus:variant calling· 1

Frequent Co-Authors

Nicholas A. FeaseyiD· 3 shared Esther Picton-BarlowiD· 2 shared Fabrice E. GrafiD· 2 shared Joseph M. LewisiD· 2 shared Sally Forrest· 2 shared Adam Paul RobertsiD· 1 shared Alasdair T. M. HubbardiD· 1 shared Alice J. Fraser· 1 shared

Activity by Year

2022-2025 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 31 mutual co-author links

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3 shared papersMicrobiology

Nicholas A. FeaseyORCID

Mutual co-authors in cluster

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3 papers

Recent·Most cited

MicrobiologyJournal of Applied MicrobiologyPeer-reviewedNov 28, 2025

An evaluation of screening methods for the detection of extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae in environmental samples from healthcare settings

Esther Picton-Barlow, Claudia McKeown, Sally Forrest…·Fabrice E. Graf

This study evaluates screening methods to detect ESBL-producing E. coli and K. pneumoniae in healthcare environmental samples, finding that 18-hour pre-enrichment and specific selective agar improve detection.

1 citation

E. colimouse

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MicrobiologyNature CommunicationsPeer-reviewedOct 18, 2024

Molecular mechanisms of re-emerging chloramphenicol susceptibility in extended-spectrum beta-lactamase producing Enterobacterales

Fabrice E. Graf, Richard N. Goodman, Sarah Gallichan…·Nicholas A. Feasey

The paper investigates the re-emerging chloramphenicol susceptibility in ESBL-producing Enterobacterales by analyzing genotype-phenotype discordance and molecular mechanisms.

34 citationstop 2%

humanwhole-genome sequencing

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Molecular BiologybioRxivPreprintAug 12, 2022

Multiplex PCR Assay for Clade-typing Salmonella Enteritidis

Sarah Gallichan, Blanca M. Perez-Sepulveda, Nicholas Feasey…·Anthony Marius Smith

The paper develops a real-time PCR assay to differentiate Salmonella Enteritidis clades for public health surveillance in resource-limited settings.

DOI 10.1101/2022.08.12.503823

experimental assay

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