Imperial College London

ProfessorChristopheFraser

Faculty of MedicineSchool of Public Health

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 3397c.fraser Website

 
 
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Location

 

G28Norfolk PlaceSt Mary's Campus

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Summary

 

Publications

Publication Type
Year
to

154 results found

Blanquart F, Lehtinen S, Fraser C, 2017, An evolutionary model to predict the frequency of antibiotic resistance under seasonal antibiotic use, and an application to Streptococcus pneumoniae, PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 284, ISSN: 0962-8452

JOURNAL ARTICLE

Blanquart F, Wymant C, Cornelissen M, Gall A, Bakker M, Bezemer D, Hall M, Hillebregt M, Ong SH, Albert J, Bannert N, Fellay J, Fransen K, Gourlay AJ, Grabowski MK, Gunsenheimer-Bartmeyer B, Guenthard HF, Kivela P, Kouyos R, Laeyendecker O, Liitsola K, Meyer L, Porter K, Ristola M, van Sighem A, Vanham G, Berkhout B, Kellam P, Reiss P, Fraser Cet al., 2017, Viral genetic variation accounts for a third of variability in HIV-1 set-point viral load in Europe, PLOS BIOLOGY, Vol: 15, ISSN: 1545-7885

JOURNAL ARTICLE

Corander J, Fraser C, Gutmann MU, Arnold B, Hanage WP, Bentley SD, Lipsitch M, Croucher NJet al., 2017, Frequency-dependent selection in vaccine-associated pneumococcal population dynamics., Nat Ecol Evol, Vol: 1, Pages: 1950-1960

Many bacterial species are composed of multiple lineages distinguished by extensive variation in gene content. These often cocirculate in the same habitat, but the evolutionary and ecological processes that shape these complex populations are poorly understood. Addressing these questions is particularly important for Streptococcus pneumoniae, a nasopharyngeal commensal and respiratory pathogen, because the changes in population structure associated with the recent introduction of partial-coverage vaccines have substantially reduced pneumococcal disease. Here we show that pneumococcal lineages from multiple populations each have a distinct combination of intermediate-frequency genes. Functional analysis suggested that these loci may be subject to negative frequency-dependent selection (NFDS) through interactions with other bacteria, hosts or mobile elements. Correspondingly, these genes had similar frequencies in four populations with dissimilar lineage compositions. These frequencies were maintained following substantial alterations in lineage prevalences once vaccination programmes began. Fitting a multilocus NFDS model of post-vaccine population dynamics to three genomic datasets using Approximate Bayesian Computation generated reproducible estimates of the influence of NFDS on pneumococcal evolution, the strength of which varied between loci. Simulations replicated the stable frequency of lineages unperturbed by vaccination, patterns of serotype switching and clonal replacement. This framework highlights how bacterial ecology affects the impact of clinical interventions.

JOURNAL ARTICLE

Cori A, Donnelly CA, Dorigatti I, Ferguson NM, Fraser C, Garske T, Jombart T, Nedjati-Gilani G, Nouvellet P, Riley S, Van Kerkhove MD, Mills HL, Blake IMet al., 2017, Key data for outbreak evaluation: building on the Ebola experience, PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 372, ISSN: 0962-8436

JOURNAL ARTICLE

Cornelissen M, Gall A, Vink M, Zorgdrager F, Binter S, Edwards S, Jurriaans S, Bakker M, Ong SH, Gras L, van Sighem A, Bezemer D, de Wolf F, Reiss P, Kellam P, Berkhout B, Fraser C, van der Kuyl ACet al., 2017, From clinical sample to complete genome: Comparing methods for the extraction of HIV-1 RNA for high-throughput deep sequencing, VIRUS RESEARCH, Vol: 239, Pages: 10-16, ISSN: 0168-1702

JOURNAL ARTICLE

Didelot X, Fraser C, Gardy J, Colijn Cet al., 2017, Genomic Infectious Disease Epidemiology in Partially Sampled and Ongoing Outbreaks, MOLECULAR BIOLOGY AND EVOLUTION, Vol: 34, Pages: 997-1007, ISSN: 0737-4038

JOURNAL ARTICLE

Doekes HM, Fraser C, Lythgoe KA, 2017, Effect of the Latent Reservoir on the Evolution of HIV at the Within- and Between-Host Levels, PLOS COMPUTATIONAL BIOLOGY, Vol: 13, ISSN: 1553-734X

JOURNAL ARTICLE

Dudas G, Carvalho LM, Bedford T, Tatem AJ, Baele G, Faria NR, Park DJ, Ladner JT, Arias A, Asogun D, Bielejec F, Caddy SL, Cotten M, D'Ambrozio J, Dellicour S, Di Caro A, Diclaro JW, Duraffour S, Elmore MJ, Iii LSF, Faye O, Gilbert ML, Gevao SM, Gire S, Gladden-Young A, Gnirke A, Goba A, Grant DS, Haagmans BL, Hiscox JA, Jah U, Kugelman JR, Liu D, Lu J, Malboeuf CM, Mate S, Matthews DA, Matranga CB, Meredith LW, Qu J, Quick J, Pas SD, Phan MVT, Pollakis G, Reusken CB, Sanchez-Lockhart M, Schaffner SF, Schieffelin JS, Sealfon RS, Simon-Loriere E, Smits SL, Stoecker K, Thorne L, Tobin EA, Vandi MA, Watson SJ, West K, Whitmer S, Wiley MR, Winnicki SM, Wohl S, Wolfel R, Yozwiak NL, Andersen KG, Blyden SO, Bolay F, Carroll MW, Dahn B, Diallo B, Formenty P, Fraser C, Gao GF, Garry RF, Goodfellow I, Gnther S, Happi CT, Holmes EC, Kargbo B, Keita S, Kellam P, Koopmans MPG, Kuhn JH, Loman NJ, Magassouba N, Naidoo D, Nichol ST, Nyenswah T, Palacios G, Pybus OG, Sabeti PC, Sall A, Stroher U, Wurie I, Suchard MA, Lemey P, Rambaut Aet al., 2017, Virus genomes reveal factors that spread and sustained the Ebola epidemic, NATURE, Vol: 544, Pages: 309-+, ISSN: 0028-0836

JOURNAL ARTICLE

Garske T, Cori A, Ariyarajah A, Blake IM, Dorigatti I, Eckmanns T, Fraser C, Hinsley W, Jombart T, Mills HL, Nedjati-Gilani G, Newton E, Nouvellet P, Perkins D, Riley S, Schumacher D, Shah A, Van Kerkhove MD, Dye C, Ferguson NM, Donnelly CAet al., 2017, Heterogeneities in the case fatality ratio in the West African Ebola outbreak 2013-2016, PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 372, ISSN: 0962-8436

JOURNAL ARTICLE

Lehtinen S, Blanquart F, Croucher NJ, Turner P, Lipsitch M, Fraser Cet al., 2017, Evolution of antibiotic resistance is linked to any genetic mechanism affecting bacterial duration of carriage, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, Vol: 114, Pages: 1075-1080, ISSN: 0027-8424

JOURNAL ARTICLE

Mostowy RJ, Croucher NJ, De Maio N, Chewapreecha C, Salter SJ, Turner P, Aanensen DM, Bentley SD, Didelot X, Fraser Cet al., 2017, Pneumococcal Capsule Synthesis Locus cps as Evolutionary Hotspot with Potential to Generate Novel Serotypes by Recombination, MOLECULAR BIOLOGY AND EVOLUTION, Vol: 34, Pages: 2537-2554, ISSN: 0737-4038

JOURNAL ARTICLE

Ratmann O, Hodcroft EB, Pickles M, Cori A, Hall M, Lycett S, Colijn C, Dearlove B, Didelot X, Frost S, Hossain ASMM, Joy JB, Kendall M, Kuhnert D, Leventhal GE, Liang R, Plazzotta G, Poon AFY, Rasmussen DA, Stadler T, Volz E, Weis C, Brown AJL, Fraser Cet al., 2017, Phylogenetic Tools for Generalized HIV-1 Epidemics: Findings from the PANGEA-HIV Methods Comparison, MOLECULAR BIOLOGY AND EVOLUTION, Vol: 34, Pages: 185-203, ISSN: 0737-4038

JOURNAL ARTICLE

Rutstein SE, Ananworanich J, Fidler S, Johnson C, Sanders EJ, Sued O, Saez-Cirion A, Pilcher CD, Fraser C, Cohen MS, Vitoria M, Doherty M, Tucker JDet al., 2017, Clinical and public health implications of acute and early HIV detection and treatment: a scoping review, JOURNAL OF THE INTERNATIONAL AIDS SOCIETY, Vol: 20, ISSN: 1758-2652

JOURNAL ARTICLE

Agua-Agum J, Allegranzi B, Ariyarajah A, Aylward RB, Blake IM, Barboza P, Bausch D, Brennan RJ, Clement P, Coffey P, Cori A, Donnelly CA, Dorigatti I, Drury P, Durski K, Dye C, Eckmanns T, Ferguson NM, Fraser C, Garcia E, Garske T, Gasasira A, Gurry C, Gutierrez GJ, Hamblion E, Hinsley W, Holden R, Holmes D, Hugonnet S, Jombart T, Kelley E, Santhana R, Mahmoud N, Mills HL, Mohamed Y, Musa E, Naidoo D, Nedjati-Gilani G, Newton E, Norton I, Nouvellet P, Perkins D, Perkins M, Riley S, Schumacher D, Shah A, Minh T, Varsaneux O, Van Kerkhove MDet al., 2016, After Ebola in West Africa - Unpredictable Risks, Preventable Epidemics, NEW ENGLAND JOURNAL OF MEDICINE, Vol: 375, Pages: 587-596, ISSN: 0028-4793

JOURNAL ARTICLE

Agua-Agum J, Ariyarajah A, Aylward B, Bawo L, Bilivogui P, Blake IM, Brennan RJ, Cawthorne A, Cleary E, Clement P, Conteh R, Cori A, Dafae F, Dahl B, Dangou J-M, Diallo B, Donnelly CA, Dorigatti I, Dye C, Eckmanns T, Fallah M, Ferguson NM, Fiebig L, Fraser C, Garske T, Gonzalez L, Hamblion E, Hamid N, Hersey S, Hinsley W, Jambei A, Jombart T, Kargbo D, Keita S, Kinzer M, George FK, Godefroy B, Gutierrez G, Kannangarage N, Mills HL, Moller T, Meijers S, Mohamed Y, Morgan O, Nedjati-Gilani G, Newton E, Nouvellet P, Nyenswah T, Perea W, Perkins D, Riley S, Rodier G, Rondy M, Sagrado M, Savulescu C, Schafer IJ, Schumacher D, Seyler T, Shah A, Van Kerkhove MD, Wesseh CS, Yoti Zet al., 2016, Exposure Patterns Driving Ebola Transmission in West Africa: A Retrospective Observational Study, PLOS MEDICINE, Vol: 13, ISSN: 1549-1676

JOURNAL ARTICLE

Agua-Agum J, Ariyarajah A, Blake IM, Cori A, Donnelly CA, Dorigatti I, Dye C, Eck-Manns T, Ferguson NM, Fraser C, Garske T, Hinsley W, Jombart T, Mills HL, Nedjati-Gilani G, Newton E, Nouvellet P, Perkins D, Riley S, Schumacher D, Shah A, Thomas LJ, Van Kerkhove MDet al., 2016, Ebola Virus Disease among Male and Female Persons in West Africa, NEW ENGLAND JOURNAL OF MEDICINE, Vol: 374, Pages: 96-98, ISSN: 0028-4793

JOURNAL ARTICLE

Blanquart F, Grabowski MK, Herbeck J, Nalugoda F, Serwadda D, Eller MA, Robb ML, Gray R, Kigozi G, Laeyendecker O, Lythgoe KA, Nakigozi G, Quinn TC, Reynolds SJ, Wawer MJ, Fraser Cet al., 2016, A transmission-virulence evolutionary trade-off explains attenuation of HIV-1 in Uganda, ELIFE, Vol: 5, ISSN: 2050-084X

JOURNAL ARTICLE

Cauchemez S, Nouvellet P, Cori A, Jombart T, Garske T, Clapham H, Moore S, Mills HL, Salje H, Collins C, Rodriquez-Barraquer I, Riley S, Truelove S, Algarni H, Alhakeem R, AlHarbi K, Turkistani A, Aguas RJ, Cummings DAT, Van Kerkhove MD, Donnelly CA, Lessler J, Fraser C, Al-Barrak A, Ferguson NMet al., 2016, Unraveling the drivers of MERS-CoV transmission, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, Vol: 113, Pages: 9081-9086, ISSN: 0027-8424

JOURNAL ARTICLE

Croucher NJ, Mostowy R, Wymant C, Turner P, Bentley SD, Fraser Cet al., 2016, Horizontal DNA Transfer Mechanisms of Bacteria as Weapons of Intragenomic Conflict, PLOS BIOLOGY, Vol: 14, ISSN: 1545-7885

JOURNAL ARTICLE

Heffernan A, Barber E, Thomas R, Fraser C, Pickles M, Cori Aet al., 2016, Impact and Cost-Effectiveness of Point-Of-Care CD4 Testing on the HIV Epidemic in South Africa, PLOS ONE, Vol: 11, ISSN: 1932-6203

JOURNAL ARTICLE

Herbeck JT, Mittler JE, Gottlieb GS, Goodreau SM, Murphy JT, Cori A, Pickles M, Fraser Cet al., 2016, Evolution of HIV virulence in response to widespread scale up of antiretroviral therapy: a modeling study, VIRUS EVOLUTION, Vol: 2, ISSN: 2057-1577

JOURNAL ARTICLE

Lamers SL, Barbier AE, Ratmann O, Fraser C, Rose R, Laeyendecker O, Grabowski MKet al., 2016, HIV-1 Sequence Data Coverage in Central East Africa from 1959 to 2013, AIDS RESEARCH AND HUMAN RETROVIRUSES, Vol: 32, Pages: 904-908, ISSN: 0889-2229

JOURNAL ARTICLE

Lessler J, Salje H, Van Kerkhove MD, Ferguson NM, Cauchemez S, Rodriquez-Barraquer I, Hakeem R, Jombart T, Aguas R, Al-Barrak A, Cummings DATet al., 2016, Estimating the Severity and Subclinical Burden of Middle East Respiratory Syndrome Coronavirus Infection in the Kingdom of Saudi Arabia, AMERICAN JOURNAL OF EPIDEMIOLOGY, Vol: 183, Pages: 657-663, ISSN: 0002-9262

JOURNAL ARTICLE

Lythgoe KA, Blanquart F, Pellis L, Fraser Cet al., 2016, Large Variations in HIV-1 Viral Load Explained by Shifting-Mosaic Metapopulation Dynamics, PLOS BIOLOGY, Vol: 14, ISSN: 1545-7885

JOURNAL ARTICLE

Pinsent A, Fraser C, Ferguson NM, Riley Set al., 2016, A systematic review of reported reassortant viral lineages of influenza A, BMC INFECTIOUS DISEASES, Vol: 16, ISSN: 1471-2334

JOURNAL ARTICLE

Ratmann O, van Sighem A, Bezemer D, Gavryushkina A, Jurriaans S, Wensing A, de Wolf F, Reiss P, Fraser Cet al., 2016, Sources of HIV infection among men having sex with men and implications for prevention, SCIENCE TRANSLATIONAL MEDICINE, Vol: 8, ISSN: 1946-6234

JOURNAL ARTICLE

Agua-Agum J, Ariyarajah A, Blake IM, Cori A, Donnelly CA, Dorigatti I, Dye C, Eckmanns T, Ferguson NM, Fowler RA, Fraser C, Garske T, Hinsley W, Jombart T, Mills HL, Murthy S, Nedjati-Gilani G, Nouvellet P, Pelletier L, Riley S, Schumacher D, Shah A, Van Kerkhove MDet al., 2015, Ebola Virus Disease among Children in West Africa, NEW ENGLAND JOURNAL OF MEDICINE, Vol: 372, Pages: 1274-1277, ISSN: 0028-4793

JOURNAL ARTICLE

Bezemer D, Cori A, Ratmann O, van Sighem A, Hermanides HS, Dutilh BE, Gras L, Faria NR, van den Hengel R, Duits AJ, Reiss P, de Wolf F, Fraser Cet al., 2015, Dispersion of the HIV-1 Epidemic in Men Who Have Sex with Men in the Netherlands: A Combined Mathematical Model and Phylogenetic Analysis, PLOS MEDICINE, Vol: 12, ISSN: 1549-1676

JOURNAL ARTICLE

Bonhoeffer S, Fraser C, Leventhal GE, 2015, High Heritability Is Compatible with the Broad Distribution of Set Point Viral Load in HIV Carriers, PLOS PATHOGENS, Vol: 11, ISSN: 1553-7366

JOURNAL ARTICLE

Cori A, Pickles M, van Sighem A, Gras L, Bezemer D, Reiss P, Fraser Cet al., 2015, CD4(+) cell dynamics in untreated HIV-1 infection: overall rates, and effects of age, viral load, sex and calendar time, AIDS, Vol: 29, Pages: 2435-2446, ISSN: 0269-9370

JOURNAL ARTICLE

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