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Sigridur J Quirk

Explore the profile of Sigridur J Quirk including associated specialties, affiliations and a list of published articles. Areas
Snapshot
Articles 7
Citations 74
Followers 0
Related Specialties
Microbiology
Genetics
Top 10 Co-Authors
Asgeir Haraldsson
Helga Erlendsdottir
Gunnsteinn Haraldsson
Angela B Brueggemann
Andries J van Tonder
Karl G Kristinsson
Stephen D Bentley
Keith A Jolley
Martin C J Maiden
James E Bray
Published In
J Clin Microbiol
Microb Genom
Front Microbiol
Affiliations
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Recent Articles
1.
Nasopharyngeal competition dynamics are likely to be altered following vaccine introduction: bacteriocin prevalence and diversity among Icelandic and Kenyan pneumococci
Butler M, Jansen van Rensburg M, Karani A, Mvera B, Akech D, Akter A, et al.
Microb Genom . 2023 Jul; 9(7). PMID: 37436819
No abstract available.
2.
Genomic Analyses of >3,100 Nasopharyngeal Pneumococci Revealed Significant Differences Between Pneumococci Recovered in Four Different Geographical Regions
van Tonder A, Bray J, Jolley K, van Rensburg M, Quirk S, Haraldsson G, et al.
Front Microbiol . 2019 Mar; 10:317. PMID: 30858837
Understanding the structure of a bacterial population is essential in order to understand bacterial evolution. Estimating the core genome (those genes common to all, or nearly all, strains of a...
3.
Vaccination of Icelandic Children with the 10-Valent Pneumococcal Vaccine Leads to a Significant Herd Effect among Adults in Iceland
Quirk S, Haraldsson G, Hjalmarsdottir M, van Tonder A, Hrafnkelsson B, Bentley S, et al.
J Clin Microbiol . 2019 Jan; 57(4). PMID: 30651396
The introduction of pneumococcal conjugate vaccines (PCVs) into childhood vaccination programs has reduced carriage of vaccine serotypes and pneumococcal disease. The 10-valent PCV was introduced in Iceland in 2011. The...
4.
Effect of Vaccination on Pneumococci Isolated from the Nasopharynx of Healthy Children and the Middle Ear of Children with Otitis Media in Iceland
Quirk S, Haraldsson G, Erlendsdottir H, Hjalmarsdottir M, van Tonder A, Hrafnkelsson B, et al.
J Clin Microbiol . 2018 Sep; 56(12). PMID: 30257906
Vaccination with pneumococcal conjugate vaccines (PCVs) disrupts the pneumococcal population. Our aim was to determine the impact of the 10-valent PCV on the serotypes, genetic lineages, and antimicrobial susceptibility of...
5.
Putatively novel serotypes and the potential for reduced vaccine effectiveness: capsular locus diversity revealed among 5405 pneumococcal genomes
van Tonder A, Bray J, Quirk S, Haraldsson G, Jolley K, Maiden M, et al.
Microb Genom . 2017 Jan; 2(10):000090. PMID: 28133541
The pneumococcus is a leading global pathogen and a key virulence factor possessed by the majority of pneumococci is an antigenic polysaccharide capsule ('serotype'), which is encoded by the capsular...
6.
Correction for van Tonder et al., Genomics Reveals the Worldwide Distribution of Multidrug-Resistant Serotype 6E Pneumococci
van Tonder A, Bray J, Roalfe L, White R, Zancolli M, Quirk S, et al.
J Clin Microbiol . 2016 May; 54(6):1670. PMID: 27217386
No abstract available.
7.
Genomics Reveals the Worldwide Distribution of Multidrug-Resistant Serotype 6E Pneumococci
van Tonder A, Bray J, Roalfe L, White R, Zancolli M, Quirk S, et al.
J Clin Microbiol . 2015 May; 53(7):2271-85. PMID: 25972423
The pneumococcus is a leading pathogen infecting children and adults. Safe, effective vaccines exist, and they work by inducing antibodies to the polysaccharide capsule (unique for each serotype) that surrounds...