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Stephen J Hadfield

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Citations 522
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Recent Articles
1.
Brenner N, Mentzer A, Butt J, Braband K, Michel A, Jeffery K, et al.
PLoS One . 2019 Jan; 14(1):e0210407. PMID: 30615688
Multiplex Serology is a high-throughput technology developed to simultaneously measure specific serum antibodies against multiple pathogens in one reaction vessel. Serological assays for hepatitis B (HBV) and C (HCV) viruses,...
2.
Davies A, Slatter M, Gennery A, Robinson G, Crouch N, Elwin K, et al.
Pediatr Infect Dis J . 2017 Apr; 36(5):504-506. PMID: 28403054
A prospective cohort study of children with primary immunodeficiencies undergoing hematopoietic stem cell transplant in the United Kingdom investigated the extent and significance of Cryptosporidium carriage in this high risk...
3.
Chalmers R, Robinson G, Hotchkiss E, Alexander C, May S, Gilray J, et al.
Parasitology . 2016 Feb; 144(1):37-47. PMID: 26831252
Cryptosporidium parvum is the major cause of livestock and zoonotically-acquired human cryptosporidiosis. The ability to track sources of contamination and routes of transmission by further differentiation of isolates would assist...
4.
Hadfield S, Pachebat J, Swain M, Robinson G, Cameron S, Alexander J, et al.
BMC Genomics . 2015 Aug; 16:650. PMID: 26318339
Background: Whole genome sequencing (WGS) of Cryptosporidium spp. has previously relied on propagation of the parasite in animals to generate enough oocysts from which to extract DNA of sufficient quantity...
5.
Quilez J, Hadfield S, Ramo A, Vergara-Castiblanco C, Chalmers R
Parasitol Res . 2014 Mar; 113(5):1821-5. PMID: 24609235
The potential of capillary electrophoresis (CE)-based DNA fragment analysis to identify mixed infections by Cryptosporidium parvum subpopulations was validated using high-resolution slab-gel electrophoresis. A selection of genomic DNA samples from...
6.
Chalmers R, Elwin K, Cheesbrough J, Hadfield S, Beeching N
J Infect . 2013 May; 67(3):231-7. PMID: 23644097
Objectives: Detection of anti-Cryptosporidium immunoglobulin G (IgG) antibodies in human sera has been used to demonstrate population exposure to this gastro-intestinal protozoan parasite. We characterised the dynamics of IgG antibody...
7.
Davies A, Reid M, Hadfield S, Johnston S, Mikhail J, Harris L, et al.
J Clin Microbiol . 2012 Sep; 50(12):4087-90. PMID: 22993176
Fifty-six α-hemolytic streptococcal isolates were identified using MALDI Biotyper MS (Bruker Daltonics), API 20 Strep (bioMérieux), and BD Phoenix (Becton, Dickinson). The gold standard for identification was 16S rRNA gene...
8.
Elwin K, Hadfield S, Robinson G, Crouch N, Chalmers R
Int J Parasitol . 2012 May; 42(7):675-82. PMID: 22633952
A novel Cryptosporidium genotype was identified, among travellers with gastro-intestinal symptoms returning to Great Britain from the Indian subcontinent, for which we propose the name Cryptosporidium viatorum n. sp. The...
9.
Hadfield S, Chalmers R
Parasitol Res . 2012 Mar; 111(3):1385-90. PMID: 22392139
Cryptosporidium cuniculus was originally detected in rabbits and has been identified as an emerging human pathogen, but the occurrence, prevalence, and epidemiology in human and rabbit populations are poorly understood....
10.
Innes E, Rose J, Cook N, Hadfield S, Pollock K, Robertson L, et al.
Trends Parasitol . 2011 Jul; 27(9):371-2. PMID: 21775210
No abstract available.