J
Joanna Ellis
Researcher at Public Health England
Publications - 147
Citations - 15143
Joanna Ellis is an academic researcher from Public Health England. The author has contributed to research in topics: Vaccination & Influenza A virus. The author has an hindex of 45, co-authored 136 publications receiving 10699 citations. Previous affiliations of Joanna Ellis include Health Protection Agency & Government of the United Kingdom.
Papers
More filters
Journal ArticleDOI
Detection of 2019 novel coronavirus (2019-nCoV) by real-time RT-PCR.
Victor M. Corman,Olfert Landt,Marco Kaiser,Richard Molenkamp,Adam Meijer,Daniel K.W. Chu,Tobias Bleicker,Sebastian Brünink,Julia Schneider,Marie Luisa Schmidt,Daphne G.J.C. Mulders,Bart L. Haagmans,Bas van der Veer,Sharon van den Brink,Lisa Wijsman,Gabriel Goderski,Jean Louis Romette,Joanna Ellis,Maria Zambon,Malik Peiris,Herman Goossens,Chantal B.E.M. Reusken,Marion Koopmans,Christian Drosten +23 more
TL;DR: A validated diagnostic workflow for 2019-nCoV is presented, its design relying on close genetic relatedness of 2019- nCoV with SARS coronavirus, making use of synthetic nucleic acid technology.
Journal ArticleDOI
Duration of infectiousness and correlation with RT-PCR cycle threshold values in cases of COVID-19, England, January to May 2020.
Anika Singanayagam,Monika Patel,Andre Charlett,Jamie Lopez Bernal,Vanessa Saliba,Joanna Ellis,Shamez N Ladhani,Maria Zambon,Robin Gopal +8 more
TL;DR: Probability of culturing virus declines to 8% in samples with Ct > 35 and to 6% 10 days after onset and it is similar in asymptomatic and symptomatic persons.
Journal ArticleDOI
COVID-19 vaccine coverage in health-care workers in England and effectiveness of BNT162b2 mRNA vaccine against infection (SIREN): a prospective, multicentre, cohort study.
Victoria Hall,Victoria Hall,Sarah Foulkes,Ayoub Saei,Nick Andrews,Nick Andrews,Blanche Oguti,Blanche Oguti,Andre Charlett,Andre Charlett,Andre Charlett,Edgar Wellington,Julia Stowe,Natalie Gillson,Ana Atti,Jasmin Islam,Ioannis Karagiannis,Katie Munro,Jameel Khawam,Meera Chand,Colin S Brown,Mary Ramsay,Mary Ramsay,Jamie Lopez-Bernal,Susan Hopkins,Susan Hopkins,N Andrews,A Atti,H Aziz,Tim Brooks,CS Brown,D Camero,C Carr,MA Chand,A Charlett,Hayley Crawford,Michael J. Cole,J Conneely,Silvia D'Arcangelo,Joanna Ellis,S Evans,S Foulkes,N Gillson,Robin Gopal,L Hall,V J Hall,P Harrington,Susan R. Hopkins,Jacqueline Hewson,Katja Hoschler,D Ironmonger,J Islam,Meaghan Kall,I Karagiannis,O Kay,J Khawam,E King,Peter Kirwan,R Kyffin,Angie Lackenby,M Lattimore,Ezra Linley,J Lopez-Bernal,L Mabey,Reuben McGregor,Shahjahan Miah,Ejm Monk,K Munro,Z Naheed,A Nissr,A M O'Connell,B Oguti,Henrietta U. Okafor,S Organ,J Osbourne,Ashley Otter,Minal Patel,Steven Platt,D Pople,K Potts,M Ramsay,Julie V. Robotham,Sakib Rokadiya,Cathy Rowe,A Saei,G Sebbage,Amanda Semper,Madhumita Shrotri,Ruth Simmons,Alex Soriano,P Staves,S Taylor,Arthur Taylor,A Tengbe,S Tonge,Amoolya Vusirikala,Sarah Wallace,E Wellington,Maria Zambon,D Corrigan,M Sartaj,L Cromey,Sharon Campbell,K Braithwaite,L Price,L Haahr,S Stewart,ED Lacey,Linda Partridge,Gretchen A Stevens,Y Ellis,H Hodgson,C Norman,B Larru,S Mcwilliam,A Roynon,J Northfield,Stephen Winchester,P Cieciwa,Aditi Pai,P Bakker,C Loughrey,A Watt,F Adair,Adrian Hawkins,Alastair Grant,R Temple-Purcell,J Howard,N Slawson,C Subudhi,Shân Davies,A Bexley,R Penn,N Wong,G Boyd,A Rajgopal,A Arenas-Pinto,R Matthews,A Whileman,R Laugharne,J Ledger,Trevor J. Barnes,Chris Jones,N Osuji,N Chitalia,T Bailey,S Akhtar,G Harrison,S Horne,Naomi F. Walker,Ken Agwuh,V Maxwell,J Graves,Stephen R. Williams,A O'Kelly,P Ridley,A Cowley,H Johnstone,P Swift,Jane Democratis,Manjula Meda,S Brake,J Gunn,A Selassi,S Hams,V Irvine,Badrinathan Chandrasekaran,C Forsyth,J Radmore,C Thomas,Kevin K. Brown,Stuart K. Roberts,P Burns,K Gajee,T Lewis,T M Byrne,F Sanderson,Stephen R Knight,Emily MacNaughton,Bjl Burton,Helen V. Smith,R Chaudhuri,J Aeron-Thomas,K Hollinshead,R.J. Shorten,A Swan,C Favager,J Murira,S Baillon,S Hamer,Aarti Shah,J Russell,D Brennan,A Dave,Ajay Chawla,F Westwell,D Adeboyeku,Padmasayee Papineni,C Pegg,Martin S. Williams,Shazaad Ahmad,Alex Horsley,Christian Gabriel,K Pagget,G Maloney,J Ashcroft,I Del Rosario,R Crosby-Nwaobi,D Flanagan,D Dhasmana,Stephen J. Fowler,E Cameron,L Prentice,C Sinclair,V Bateman,K McLelland-Brooks,A Ho,Michael P. Murphy,A Cochrane,A Gibson,K. Black,K Tempeton,Stacey Donaldson,L Coke,N Elumogo,J Elliott,Debra Padgett,A Cross,Mariyam Mirfenderesky,S Joyce,I Sinanovic,M Howard,P Cowling,M Brazil,E Hanna,A Abdelrazik,S Brand,EA Sheridan,B Wadams,A Lloyd,J Mouland,J Giles,G Pottinger,H Coles,Mark Joseph,M Lee,S Orr,H Chenoweth,D Browne,Cressida Auckland,R Lear,Tabitha Mahungu,Alison Rodger,Simon Warren,D Brooking,S Pai,R Druyeh,Edward M. Smith,S. Stone,Sarah Meisner,D Delgado,E Underhill,L Keen,M Aga,P Domingos,S Gormley,Caroline Kerrison,S Birch,T DeSilva,L Allsop,S Ambalkar,M Beekes,S Jose,J Tomlinson,Sharen Painter,Claire Price,Justin Pepperell,Keith D. James,T Trinick,L Moore,Jeremy N. Day,A Boulos,I Knox,E Defever,D McCracken,K Gray,A Houston,Tim Planche,R Pritchard Jones,Diane Wycherley,Sara Bennett,J Marrs,K Nimako,Benjamin J. Stewart,SC Bain,N Kalakonda,S Khanduri,A Ashby,Matthew T. G. Holden,N Mahabir,J Harwood,Brendan A I Payne,K Court,Nicholas J. White,R Longfellow,L E Hughes,M E Green,M Halkes,P Mercer,A Roebuck,Eleri Wilson-Davies,L Gallego,Rajeka Lazarus,N Aldridge,Louise Berry,Frances L. Game,Timothy M Reynolds,Christopher W Holmes,Martin Wiselka,A Higham,M Booth,C Duff,J Alderton,D Hilton,J Powell,Alan Jackson,AJ Plant,Nada Ahmed,T Chin,M Z Qazzafi,A M Moody,Robert Tilley,T Donaghy,M O'Kane,K Shipman,R Sierra,Chetan Parmar,Gordon B. Mills,Daniel Harvey,Ywj Huang,J Birch,Louise Robinson,S Board,A Broadley,C Laven,N Todd,David W Eyre,Katie Jeffery,Susanna Dunachie,Christopher J A Duncan,Paul Klenerman,Lance Turtle,Helen Baxendale,Jonathan L. Heeney +353 more
TL;DR: The SIREN study as discussed by the authors showed that the BNT162b2 vaccine can prevent both symptomatic and asymptomatic infection in working-age adults in the UK.
Journal ArticleDOI
Community transmission and viral load kinetics of the SARS-CoV-2 delta (B.1.617.2) variant in vaccinated and unvaccinated individuals in the UK: a prospective, longitudinal, cohort study.
Anika Singanayagam,Anika Singanayagam,Anika Singanayagam,Seran Hakki,Jake Dunning,Jake Dunning,Kieran J Madon,Michael A. Crone,Aleksandra Koycheva,Nieves Derqui-Fernandez,Jack L Barnett,Michael G Whitfield,Robert Varro,Andre Charlett,Rhia Kundu,Joe Fenn,Jessica Cutajar,Valerie Quinn,Emily Conibear,Wendy S. Barclay,Paul S. Freemont,Graham P. Taylor,Shazaad Ahmad,Maria Zambon,Neil M. Ferguson,Ajit Lalvani,Anjna Badhan,Simon Dustan,Chitra Tejpal,Anjeli V Ketkar,J. S. Narean,Sarah Hammett,Eimear McDermott,Timesh D Pillay,Hamish Houston,Constanta Luca,Jada Samuel,Samuel Bremang,Samuel Evetts,John Poh,Charlotte Anderson,David C. Jackson,Shahjahan Miah,Joanna Ellis,Angie Lackenby +44 more
TL;DR: In this article, the authors investigated transmission and viral load kinetics in vaccinated and unvaccinated individuals with mild delta variant infection in the community, and found that faster viral load growth was correlated with higher peak viral load (correlation 0·42 [95% credible interval 0·13 to 0·65]) and slower decline (0·44 [−0·67 to −0·18]).
Journal ArticleDOI
SARS-CoV-2 infection rates of antibody-positive compared with antibody-negative health-care workers in England: a large, multicentre, prospective cohort study (SIREN).
V J Hall,Sarah Foulkes,Andre Charlett,Ana Atti,Edward J.M. Monk,Ruth Simmons,Edgar Wellington,M J Cole,Ayoub Saei,Blanche Oguti,Katie Munro,Sarah Wallace,Peter Kirwan,Madhumita Shrotri,Amoolya Vusirikala,Sakib Rokadiya,Meaghan Kall,Maria Zambon,Mary Ramsay,Tim Brooks,Colin S Brown,Meera Chand,Susan Hopkins,Nick Andrews,H Aziz,D Camero,C Carr,H Crawford,Michelle J Cole,J Conneely,Silvia D'Arcangelo,Joanna Ellis,S Evans,Natalie Gillson,Robin Gopal,L Hall,P Harrington,Jacqueline Hewson,Katja Hoschler,D Ironmonger,Jasmin Islam,Ioannis Karagiannis,O Kay,Jameel Khawam,E King,P Kirwan,R Kyffin,Angie Lackenby,M Lattimore,Ezra Linley,Jamie Lopez-Bernal,L Mabey,Reuben McGregor,Shahjahan Miah,Monk Emj.,Z Naheed,A Nissr,A M O'Connell,Henrietta U. Okafor,S Organ,J Osbourne,Ashley Otter,Monika Patel,Steven Platt,D Pople,K Potts,Julie V. Robotham,Cathy Rowe,G Sebbage,Amanda Semper,Alex Soriano,P Staves,S Taylor,Anne W. Taylor,A Tengbe,S Tonge,D Corrigan,M Sartaj,L Cromey,Sharon Campbell,K Braithwaite,L Price,L Haahr,S Stewart,ED Lacey,Linda Partridge,Gretchen A Stevens,Y Ellis,H Hodgson,C Norman,B Larru,S Mcwilliam,Stephen Winchester,P Cieciwa,Aditi Pai,C Loughrey,A Watt,F Adair,Adrian Hawkins,Alastair Grant,R Temple-Purcell,J Howard,N Slawson,C Subudhi,Shân Davies,A Bexley,R Penn,N Wong,G Boyd,A Rajgopal,A Arenas-Pinto,R Matthews,A Whileman,R Laugharne,J Ledger,Trevor J. Barnes,Carrie K. Jones,D Botes,N Chitalia,S Akhtar,G Harrison,S Horne,Naomi F. Walker,Ken Agwuh,V Maxwell,J Graves,Sue Williams,A O'Kelly,P Ridley,A Cowley,H Johnstone,P Swift,Jane Democratis,Manjula Meda,C Callens,S Beazer,S Hams,V Irvine,Badrinathan Chandrasekaran,C Forsyth,J Radmore,C Thomas,Kevin K. Brown,Sally A Roberts,P Burns,K Gajee,T M Byrne,F Sanderson,Stephen R Knight,Emily MacNaughton,Burton Bjl.,Helen V. Smith,R Chaudhuri,K Hollinshead,R.J. Shorten,A Swan,C Favager,J Murira,S Baillon,S Hamer,K Gantert,J Russell,D Brennan,A Dave,Ajay Chawla,F Westell,D Adeboyeku,Padmasayee Papineni,C Pegg,Martin S. Williams,Shazaad Ahmad,S Ingram,Christian Gabriel,K Pagget,G Maloney,J Ashcroft,I Del Rosario,R Crosby-Nwaobi,C Reeks,S Fowler,L Prentice,M Spears,G McKerron,K McLelland-Brooks,J Anderson,Stacey Donaldson,Kate Templeton,L Coke,N Elumogo,J Elliott,Debra Padgett,A Cross,Jonathan Price,S Joyce,I Sinanovic,M Howard,T Lewis,P Cowling,D Potoczna,S Brand,L Sheridan,B Wadams,A Lloyd,J Mouland,J Giles,G Pottinger,H Coles,M Joseph,M Lee,S Orr,H Chenoweth,Cressida Auckland,R Lear,Tabitha Mahungu,Alison Rodger,K Penny-Thomas,S Pai,J Zamikula,Edward M. Smith,S. Stone,E Boldock,D Howcroft,Carrie A. Thompson,M Aga,P Domingos,S Gormley,Caroline Kerrison,Laura Marsh,S Tazzyman,L Allsop,S Ambalkar,M Beekes,S Jose,J Tomlinson,A Jones,Claire Price,Justin Pepperell,M Schultz,Jeremy N. Day,A Boulos,E Defever,D McCracken,K Gray,A Houston,Tim Planche,R Pritchard Jones,D Wycherley,Sara Bennett,J Marrs,K Nimako,Benjamin J. Stewart,N Kalakonda,S Khanduri,A Ashby,Matthew T. G. Holden,N Mahabir,J Harwood,Brendan A I Payne,K Court,Nikki Staines,R Longfellow,M E Green,L E Hughes,M Halkes,P Mercer,A Roebuck,Eleri Wilson-Davies,L Gallego,Rajeka Lazarus,N Aldridge,Louise Berry,Frances L. Game,Timothy M Reynolds,Christopher W Holmes,Martin Wiselka,A Higham,M Booth,C Duff,J Alderton,H Jory,E Virgilio,T Chin,M Z Qazzafi,A M Moody,Robert Tilley,T Donaghy,K Shipman,R Sierra,Nick S. Jones,Gary H. Mills,Daniel Harvey,Huang Ywj.,J Birch,Louise Robinson,S Board,A Broadley,C Laven,N Todd,David W Eyre,Katie Jeffery,Susanna Dunachie,Christopher J A Duncan,Paul Klenerman,Lance Turtle,Helen Baxendale,Jonathan L. Heeney +305 more
TL;DR: The SARS-CoV-2 Immunity and Reinfection Evaluation study as mentioned in this paper showed that a previous history of SARS infection was associated with an 84% lower risk of infection, with median protective effect observed 7 months following primary infection.