6 research outputs found
La renovación de la palabra en el bicentenario de la Argentina : los colores de la mirada lingüística
- Author
- Abusamra Valeria
- Abusamra Valeria
- Acosta Silvia Patricia
- Adelstein Andreína
- Adem Adriana
- Agostini de Sánchez Mónica
- Aguiar Marígia Ana
- Aguirre de Quevedo Lidia
- Aguirre Daniela
- Aguirre Luis Alejandro
- Aibar Marilina
- Albano Hilda R.
- Albarracín Claudia Carina
- Albiñana Graciela
- Ali Valeria
- Alonso Damiana
- Amadio Débora
- Anglada Liliana
- Anglada Liliana
- Apud Higonet M. Belén
- Araya María Teresa
- Arbusti Marcia Sonia
- Armata Olga
- Avellana Alicia
- Azzolini Martín
- Balatti Fernanda
- Baldasso de Fiocchetta Alicia
- Barroso Ilda E.
- Battista Emiliano
- Bernardi Lucía
- Berri Marina
- Boccia Cristina
- Bonorino María Paula
- Bortolon Mariela Andrea
- Bosio Iris Viviana
- Brain Virginia
- Broilo Cecilia
- Buffa Ivana
- Buzelin Haro Corina Margarita
- Calcopietro Martín
- Calvo Garbarino Noelia
- Calvo Ana I.
- Carminatti Mariana
- Carol Javier
- Carrillo María Cristina
- Carrizo Alicia Eugenia
- Cartoceti Romina
- Cartoceti Romina
- Casajús Andrea
- Casares María Fernanda
- Castañeda Claudia
- Castel Víctor M.
- Castilla Carlos Enrique
- Castro Adriana
- Castro Carmen
- Cegarra Juan José
- Cohen de Chervonagura Elisa
- Colombo Natalia Virginia
- Constantino Gustavo Daniel
- Costa Natalia V.
- Cuadros Mirtha
- Cubo de Severino Liliana
- Cucatto Andrea
- Cuestas Anahí
- Cuñarro Mariana
- Cárdenas Viviana
- Dalla Costa Natalia V.
- Dandrea Fabio Daniel
- Davis Efraín
- De la Torre María Gabriela
- Demagistri María Silvina
- Di Iorio Osvaldo R.
- Difabio Hilda Emilia
- Douglas Silvina
- Dudzicz Verónica
- Dvoskin Gabriel
- Engemann Marcela
- Escandell-Vidal Victoria
- Escobar Negri Matilde Belén
- Etkin Sergio
- Fanese Griselda
- Farías Alejandra
- Favarotto Victoria
- Fernández Lávaque Ana María
- Ferreres Aldo
- Ferreres Aldo
- Flax Rocío
- Forte Nora B.
- Fructuoso Libertad
- Gaido Angélica
- Gallardo Susana
- Galli Graciela
- García Negroni María Marta
- García Paula Sylvina
- Gava Ileana Yamina
- Germani Miriam P.
- Ghirardotto María Verónica
- Giammatteo Mabel
- Giménez Florencia
- Giollo Natalia
- Glozman Mara
- González María Susana
- González Nora
- Gordo Norma
- Grasso Marina
- Greco Florencia
- Guerra Mónica
- Gutiérez Yurena María
- Gutiérrez Analía
- Hall Beatriz
- Hasler Felipe
- Hellín Lucía
- Hidalgo Leonardo Matías
- Hipperdinger Yolanda
- Iacoboni Gabriela
- Ibañez Karina
- Insirillo Patricia
- Isuani de Aguiló María Elena
- Julián Gisele G.
- Kaller Andrés
- Kejner Emilse
- Kevorkian Analía E.
- Krieger Maria da Graça
- Kuguel Inés
- Lacanna Georgina
- Lahitte Pilar
- Lauría Daniela
- Leonetti Manuel
- Llomparte Cecilia Castro
- Lucena Silvio Alexis
- Lupprich Edith
- López Esther
- López María Isabel
- Macagno Laura
- Magariños María Victoria
- Mandatori Laura D.
- Marcovecchio Ana M.
- Marra de Acebedo Leonor
- Martínez Ramacciotti Javier
- Matienzo Teresita
- Mauro Karina
- Menti Alejandra B.
- Merzig Brigitte
- Messineo María Cristina
- Milano María Inés
- Minguell Antonia Esther
- Miranda Lidia Raquel
- Montes Lilian Elvira
- Morchio María José
- Morón Usandivaras Mariana
- Moser Karolin
- Moyano Susana
- Moyetta Daniela S.
- Müller Gisela
- Nafá María Lourdes
- Nardechia Viviana
- Nascimento Hiliana Alves dos Santos
- Navarro Paula C.
- Naveira Liliana María
- Negrelli Fabián H.
- Negri Silvina Analía
- Nieto González Analía
- Núñez Cristina del Valle
- Oliveira Sargentini Vanice María
- Orellano de Marra Verónica
- Orsi Laura
- Otero Julia
- Pacagnini Ana M. J.
- Padilla Constanza
- Palma Alejandra Gabriela
- París Luis
- Pascual Graciela B.
- Pasquini Marina
- Pazgón Elisa
- Pereira Batista Rosinalda
- Pessi María Soledad
- Picelille Silvia
- Pico María Lelia
- Picón Estela
- Porta Andrés Osvaldo
- Possamai Camilotti Fabrina C.
- Pérez Inés Gimena
- Pérez Liliana
- Raffaghelli Juliana Elisa
- Rampoldi Cora C.
- Ramírez Gelbes Silvia
- Rearte Juan Lázaro
- Redonder Nidia
- Reguera Alejandra
- Ribotta Patricia G.
- Riestra Dora
- Rivas Lucía I.
- Rodas Juana del Valle
- Rojas E. Gustavo
- Rojo Guillermo
- Roldán Luciana
- Romano María Belén
- Romero Daniel
- Rosemberg Celia R.
- Rébola María Cristina
- Sal Paz Julio César
- Sala María Elisa
- Salas Figueroa Patricia
- Salmaso Grisel
- Salvo de Vargas María Estela
- Sampedro Bárbara
- Sampedro Bárbara
- Sanou Rosa María
- Santos Jocenilson Ribeiro dos
- Sastre María Silvia
- Savio Karina
- Seoane Carolina
- Serra Piana Marcela A.
- Silveira de Araujo Leandro
- Soto Guillermo
- Stoll Eva
- Suárez Cepeda Sonia
- Szretter Noste Mariana
- Taboada María Beatriz
- Tapia Stella Maris
- Torino de Morales Marta Elena
- Tosi Carolina
- Trombetta Augusto M.
- Vidal Alejandra
- Vitale Guillermina
- Vivas Jorge
- Vivas L.
- Viñas Quiroga Ingrid
- Voltarel Silvina María
- Vázquez Villanueva Graciana
- Vázquez Stella Maris
- Wingeyer Hugo Roberto
- Yerro Matías
- Zamarreño Silvia A.
- Zamuner Amanda
- Zangla Alicia
- Álvarez Chamale Fernanda María
- Álvarez Guadalupe
- Ávila Carina
- Publication venue
- Ediciones Biblioteca Digital UNCuyo
- Publication date
- 01/01/2010
- Field of study
El libro reúne trabajos en los que se exponen resultados de investigaciones presentadas por investigadores de Argentina, Chile, Brasil, España, Italia y Alemania en el XII Congreso de la Sociedad Argentina de Lingüística (SAL), Bicentenario: la renovación de la palabra, realizado en Mendoza, Argentina, entre el 6 y el 9 de abril de 2010. Las temáticas abordadas en los 167 capítulos muestran las grandes líneas de investigación que se desarrollan fundamentalmente en nuestro país, pero también en los otros países mencionados arriba, y señalan además las áreas que recién se inician, con poca tradición en nuestro país y que deberían fomentarse. Los trabajos aquí publicados se enmarcan dentro de las siguientes disciplinas y/o campos de investigación: Fonología, Sintaxis, Semántica y Pragmática, Lingüística Cognitiva, Análisis del Discurso, Psicolingüística, Adquisición de la Lengua, Sociolingüística y Dialectología, Didáctica de la lengua, Lingüística Aplicada, Lingüística Computacional, Historia de la Lengua y la Lingüística, Lenguas Aborígenes, Filosofía del Lenguaje, Lexicología y Terminología
Effect of current density on cod removal efficiency for wastewater usthe electrocoagulation process
- Author
- Publication venue
- 'Universidad Continental'
- Publication date
- 01/01/2020
- Field of study
The electrocoagulation process is an electrochemical technique that has demonstrated wide potential
because it can be applied to wastewater from different industrial sectors considering the principles of electrolysis and coagulation. It is a low-cost method and of easy installation. Effluents with
high concentrations of oils grease and chemical oxygen demand (COD) can be treated successfully
obtaining high removal efficiencies. The purpose of this study was to analyze the effect of current
density on the performance of oil/grease removal (OG), COD, and turbidity (NTU), as well as the
pH variation and electrical conductivity during the process in batch mode. The effluent from the
dairy industry with 172.6 mg OG/L, removed 70.30% OG, 75.38% COD with 76.92 A/m2
in 25 min of
electrolysis. Two combinations of 2Fe-1Al and 1Fe-2Al anodes were analyzed at 68.38 A/m2
, reaching
removals of 74.74% and 70% of OG, respectively. Regarding the domestic kitchen effluent, the COD
initial was 1,766 mg/L, and working with two Fe-anodes, the OG removal efficiencies in 15 min of
electrolysis were 94.9%, 96.75%, and 96.53% with current densities of 37, 56, and 74 A/m2
, respectively. The OG removal efficiencies were similar with Al-anodes. The COD removal efficiencies with
Fe-anodes were 66.7%, 76.9%, and 68.7%, and with Al-anodes were 76.3%, 77.4%, and 77.5%, respectively. Both effluents were studied with an inter-electrode distance of 3 cm, and the pH in both cases
varied from 7 to 8, which favors the elimination of contaminants by adsorption. The electrical conductivity did not undergo major changes, favoring the economy of the electrocoagulation process.
Electrocoagulation is a low-cost electrochemical process in order to remove organic pollutants
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- Publication venue
- 'Walter de Gruyter GmbH'
- Publication date
- 01/01/1943
- Field of study
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- Author
- Abad Vanessa
- Abate Getahun
- Abbas Anum
- Ackerman Jamie
- Ackerman Ronald
- Ackermann Jeremy
- Adams Atoya
- Adams Mark S.
- Adams Michael R.
- Adelglass Jeffrey
- Afework Sarah
- Ahmad Nina
- Akamine Christine
- Ake Julie A.
- Al-Ibrahim Mohamed S.
- Albert Gary
- Alcaide Maria L.
- Alderson Nathan
- Aleman Lily
- Alemán José O.
- Allaw Mohammed
- Alva E. Javier Pretell
- Alvarado Hilario
- Amador Carmen
- Andersen James
- Anderson Corey G.
- Anderson Evan J.
- Anderson Victoria R.
- Andes David R.
- Andrasik Michele P.
- Andree Stephanie
- Andrews Jeb
- Andriesen Jessica G.
- Andriulis Victoria
- Ansel Jessica L.
- Anthony Codi M.
- Antwi Mohammed
- Arduino Roberto C.
- Aristy Florida
- Arnold Valerie K.
- Arrazcaeta Alicia
- Atmar Robert L.
- Avworo Ayoade
- Bacher Christina
- Baden Lindsey R.
- Badillo Diana
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- Balani Bindu
- Ball Brandy
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- Baron Mira
- Barranco-Santana Elizabeth
- Bartilucci Darlene
- Bashour Jennifer
- Batteiger Teresa A.
- Baudelaire Clarisse
- Bazan Jose A.
- Becerra Maria G.
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- Bennett Elizabeth
- Beresnev Tatiana
- Berman Megan
- Bermudez Maria I.
- Bernard Marcia
- Bernstein David I.
- Berry Andrea
- Berry Jennifer
- Berthaud Vladimir
- Bialobok Kristin
- Billings Joanne L.
- Bittner Zachary
- Blevins Jeanne
- Blumenthal Jill
- Boas Rebecca
- Bocchini Joseph
- Bold Tyler D.
- Bondell Alison
- Bondy Paul
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- Borgetti Scott
- Boscia Joseph
- Boswell Dean M.
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- Calderon Rafael
- Calderone Richard
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- Call Robert S.
- Callis Jim
- Camacho-Gonzalez Andres
- Campbell Thomas B.
- Campbell Wesley
- Cancilla Michael
- Cannon Kevin D.
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- Carpenter Christopher
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- Carsons Steven E.
- Carvajal Marianela
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- Castellon Marvin
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- Choquette Karin
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- Choza Laura Julia Camacho
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- Chu Hanh
- Chu Laurence
- Chughtai Waseem
- Chung Michael
- Ciambruschini Annie
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- Cooney Maureen
- Cooper Deanna
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- Corey Lawrence
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- Cruz-Valdez Aurelio
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- Desjardins Michael
- Deutsch Karen
- Dever Michael E.
- Devine Naomi
- Dickey Michelle
- Diemert David J.
- Dietz Craig
- Doblecki-Lewis Susanne
- Domínguez Sandra Janeth Ortega
- Dong Jennifer L.
- Dora Tambra
- Dorcely Brenda
- Doust Matthew W.
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- Walsh Stephen R.
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- Williams Hayes
- Williams Samantha
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- Wilson Clint
- Wilson Greg
- Wilson Natasha
- Winbigler Jennifer
- Winkle Peter J.
- Winokur Patricia L.
- Witbeck John
- Wohl David
- Woo Wayne
- Woodside Leana
- Wortman Glenn
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- Wylie Paul E.
- Yang Fan
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- Yoon Anelgine C.
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- Young Cheryl
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- Yusin Joseph
- Zapata Luz
- Zash Rebecca
- Zegarra Eneyda Giuvanela Llerena
- Zemanek Arthur L.
- Zenlea Kate
- Zepeda Karla
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- Zhai Nan
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- Zimmer Andrea
- Zingman Barry S.
- Zorrilla Carmen D.
- Áñez Germán
- Publication venue
- 'Elsevier BV'
- Publication date
- 01/10/2023
- Field of study
Background: While vaccines have established utility against COVID-19, phase 3 efficacy studies have generally not comprehensively evaluated protection provided by previous infection or hybrid immunity (previous infection plus vaccination). Individual patient data from US government-supported harmonized vaccine trials provide an unprecedented sample population to address this issue. We characterized the protective efficacy of previous SARS-CoV-2 infection and hybrid immunity against COVID-19 early in the pandemic over three-to six-month follow-up and compared with vaccine-associated protection. Methods: In this post-hoc cross-protocol analysis of the Moderna, AstraZeneca, Janssen, and Novavax COVID-19 vaccine clinical trials, we allocated participants into four groups based on previous-infection status at enrolment and treatment: no previous infection/placebo; previous infection/placebo; no previous infection/vaccine; and previous infection/vaccine. The main outcome was RT-PCR-confirmed COVID-19 >7–15 days (per original protocols) after final study injection. We calculated crude and adjusted efficacy measures. Findings: Previous infection/placebo participants had a 92% decreased risk of future COVID-19 compared to no previous infection/placebo participants (overall hazard ratio [HR] ratio: 0.08; 95% CI: 0.05–0.13). Among single-dose Janssen participants, hybrid immunity conferred greater protection than vaccine alone (HR: 0.03; 95% CI: 0.01–0.10). Too few infections were observed to draw statistical inferences comparing hybrid immunity to vaccine alone for other trials. Vaccination, previous infection, and hybrid immunity all provided near-complete protection against severe disease. Interpretation: Previous infection, any hybrid immunity, and two-dose vaccination all provided substantial protection against symptomatic and severe COVID-19 through the early Delta period. Thus, as a surrogate for natural infection, vaccination remains the safest approach to protection. Funding: National Institutes of Health
Risk of COVID-19 after natural infection or vaccinationResearch in context
- Author
- A. Lina Rosengren
- Abram Burgher
- Adam B. Brosz
- Adam Rosen
- Adam Schwartz
- Adriana Sordo Duran
- Adrienna Marquez
- Adrienne E. Shapiro
- Aeiress Duhart
- Afsoon Roberts
- Albert Liu
- Alejandro Hoberman
- Alejandro Quintín Barrat Hernández
- Alex Greninger
- Alexander Clark
- Alfredo Gilberto Guerreros Benavides
- Alice McGarry
- Alicia Arrazcaeta
- Alisha Lutat
- Alison Bondell
- Alison Pellecchia
- Allie Oplinger
- Allison Green
- Allison O'Brien
- Alpa Patel
- Alyssa-Kay Peay
- Amanda Horn
- Amanda Lilienthal
- Amanda Occhino
- Amanda Philyaw
- Amaran Moodley
- Amber Grant
- Amber Stanford
- Amesika Nyaku
- Amie Shannon
- Amina Z. Haggag
- Amit Paliwal
- Amy Caldwell
- Amy Chamberlain
- Amy Dye
- Amy Falk
- Amy Kelley
- Amy Medina
- Amy Potts
- Amy Salzl
- Amy Sherman
- Amy Starr
- Amy Thompson
- Andrea Berry
- Andrea Clement
- Andrea Wendrow
- Andrea Zimmer
- Andres Bran
- Andres Camacho-Gonzalez
- Andrew Lauria
- Andrew McConnell
- Andrew McWilliams
- Anelgine C. Yoon
- Angela Lee
- Angela R. Branche
- Angelica Kottkamp
- Angella Webb
- Ann M. Milliken
- Ann R. Falsey
- Anna S. Lok
- Anna Wald
- Anne Marit de Groot
- Anne-Marie Rick
- Annette R. Bennett
- Annie Ciambruschini
- Annie Luetkemeyer
- Anthony Kim
- Anum Abbas
- Anyela Lara
- April Pixler
- Ariana C. Stanton
- Arthur L. Zemanek
- Asha Inniss
- Ashley Kennedy
- Ashley Perez
- Ashley Warden
- Asif Noor
- Atoya Adams
- Aurelio Cruz-Valdez
- Austin Chan
- Austin Swanson
- Ayanna Walters
- Ayoade Avworo
- Bailey Jordan
- Barbara Corral
- Barbara Rizzardi
- Barbara Rizzardi
- Barbara S. Taylor
- Barry S. Zingman
- Barton G. Williams
- Beatriz Grinsztejn
- Becky Martinez
- Ben Ladner
- Benjamin Eckhardt
- Benjamin J. Luft
- Bernard Grunstra
- Beth Safirstein
- Bethanie Wilkinson
- Beverly E. Sha
- Beverly Ewing
- Bindu Balani
- Blanca Gomez
- Bo Shopsin
- Boerries Brandenburg
- Brandie Taylor
- Brandon J. Essink
- Brandy Ball
- Breanz Watkins
- Brenda Dorcely
- Brendan Levy
- Brett Gray
- Brett Leav
- Brian D.W. Chow
- Brit Sovic
- Brittany Feijoo
- Brittany Stewart
- Bruce C. Gebhardt
- Bruce G. Rankin
- Bruce McClenathan
- Bruno Valenti
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- Howard Schwartz
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- Jeffrey A. Henderson
- Jeffrey Adelglass
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- Jeffrey Klein
- Jeffrey M. Jacobson
- Jeffrey Meier
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- Jenina Garcia
- Jennie Johnson
- Jennifer A. Johnson
- Jennifer A. Whitaker
- Jennifer Bashour
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- Jennifer Chang
- Jennifer Foley
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- Jennifer McCarter
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- Jennifer Winbigler
- Jenny Hendriks
- Jerald Sadoff
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- Jeremy Brown
- Jerome Custers
- Jerome G. Naifeh
- Jesse L. Clark
- Jessica E. Justman
- Jessica G. Andriesen
- Jessica Heimonen
- Jessica Ibarra
- Jessica L. Ansel
- Jessica L. Lee
- Jessica L. Weidler
- Jessica M. Mena
- Jessica Ortega
- Jessica Rodriguez
- Jessica Stahl
- Jewel J. White
- Jill Blumenthal
- Jill Kessler
- Jill York
- Jim Callis
- Joan Rothenberg
- Joanne L. Billings
- Jocelyn Zuleica Olmos Vega
- Jodi Meck
- Joel Solis
- Johan Vingerhoets
- John A. Kirby
- John J. Treanor
- John Johnson
- John Lucaj
- John M. Hill
- John Mascola
- John S. Kizer
- John Sanders
- John W. McGettigan Jr.
- John Witbeck
- Jon F. Dedon
- Jon Finley
- Jonathan Staben
- Jonlyn McGettigan
- Jordan Coslet
- Jordan L. Whatley
- Jorge A. Benitez
- Jorge A. Chacón
- Jorge Caso
- Jorge F. Méndez Galván
- Jose A. Bazan
- Jose C. Mancilla
- Jose Castillo Mancilla
- Jose Gonzales-Zamora
- Joseph Bocchini
- Joseph Boscia
- Joseph D. Davis
- Joseph Eron Jr.
- Joseph Grillo
- Joseph J. Eron
- Joseph L. Newberg
- Joseph P. Connor
- Joseph Yusin
- Joshua Rindt
- José O. Alemán
- Joy Nelson
- Juan J. Rivera
- Juan Luis Yrivarren Giorza
- Juan P. Torres
- Juan V. Guanira-Carranza
- Juana R. Pavie
- Juana Rivera
- Judith Borger
- Judith Brady
- Judith L. Kirstein
- Judith Martin
- Judy Pi
- Julia Hutter
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- Julian A. Torres
- Julie A. Ake
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- Julie White
- Julio Nasim
- Justin Singletary
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- Karen Tashima
- Karin Choquette
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- Karl M. Thompson
- Karla Beatriz Tafur Bances
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- Katherine Smith
- Katherine Stapleton
- Kathleen Linder
- Kathleen M. Mullane
- Kathleen M. Neuzil
- Kathleen Menasche
- Kathleen S. Jones
- Kathryn E. Stephenson
- Kawsar R. Talaat
- Keith R. Jerome
- Keith W. Vrbicky
- Kelly Kush
- Kelly McQuarrie
- Ken Ho
- Kendra Enright
- Kendra Lisec
- Kenneth Finkelstein
- Kenneth H. Mayer
- Kenneth Steil
- Kevin D. Cannon
- Kevin Parks
- Kevin Zhang
- Kia Lee
- Kia Lee
- Kim Quillin
- Kimberly Mueller
- Kimberly Nieves
- Kimberly Nofz
- Kimberly Snell
- Kinara S. Yang
- Kirsten Hauge
- Kristen Johnson
- Kristen K. Pierce
- Kristen Kiersey
- Kristin Bialobok
- Kristin Marks
- Kristina Harrison
- Kristine J. Kucera
- LaKondria Curry
- Lalitha Parameswaran
- Larkin T. Wadsworth III
- LaShondra Cade
- LaTeshia Thomas-Seaton
- Laura Hernandez Guarin
- Laura Julia Camacho Choza
- Laura Kogelman
- Laura Pearlman
- Laura Pearlman
- Laura Porterfield
- Laura Ruy Sanchez Guerrero
- Laura Stulken
- Lauren Clement
- Lauren Newhouse
- Laurence Chu
- Laurie J. Han-Conrad
- Lawrence Corey
- Lawrence J. Purpura
- Lazaro Gonzalez
- Leana Woodside
- Lee Tomatsu
- Leena Paul
- Leila Hojat
- Leland N. Allen III
- Lena R. Freese
- Leonard Singer
- Les B. Forgosh
- Lesley Browder
- Leslie A. Edwards
- Leslie Iverson
- Lilly Immergluck
- Lily Aleman
- Lina M. Forero
- Linda M. Schipani
- Linda Murray
- Linda R. Belhorn
- Lindsey R. Baden
- Lisa A. Jackson
- Lisa Chrisley
- Lisa Cohen
- Lisa Holloway
- Lisa J. Sanders
- Lisa Johnson
- Lisa M. Dunkle
- Lisa S. Usdan
- Lisa Stangl
- Lisa Stevens Rameaka
- Logan Ledbetter
- Lois Katz
- Lora J. McGill
- Lori Nesbitt
- Lucy Ng-Price
- Luis H. González
- Luis I. De La Cruz
- Luke Friesen
- Luz Zapata
- Lyly Dang
- Lyndsea Folsom
- Lynn Eckert
- Lynne A. Haughey
- M. Juliana McElrath
- M. Mahdee Sobhanie
- Magdalena E. Sobieszczyk
- Maggie Bowers
- Maggie Lewis
- Mai Pham
- Malina Regalado
- Mamodikoe Makhene
- Mandy Vowell
- Manisha Horton
- Mara Kryvicky
- Marc Siegel
- Marcel Curlin
- Marcia Bernard
- Marcia O'Leary
- Marcus J. Zervos
- Marcy Kulic
- Margaret Cheng
- Margaret E. McCort
- Margaret Kautz
- Margaret Powers-Fletcher
- Margaret Rhee
- Margaret Wells
- Marguerite Neill
- Maria G. Becerra
- Maria Hernandez Moran
- Maria I. Bermudez
- Maria Johnson
- Maria L. Alcaide
- Maria M. Regalado
- Maria Mileno
- Marian E. Shaw
- Marianela Carvajal
- Maricruz E. Ortegón
- Marina Lee
- Mario Castro
- Mark A. Turner
- Mark E. Kutner
- Mark Eickhoff
- Mark Hutchens
- Mark Leibowitz
- Mark Lerman
- Mark M. McKenzie
- Mark S. Adams
- Marshall A. Cross
- Marshall Nash
- Martha Carmen Medina
- Martha Cecilia Gómora Madrid
- Martha Nason
- Martha Sanchez
- Martín Bäcker
- Marvin Castellon
- Mary A. Marovich
- Mary Beth Manning
- Mary C. Walsh
- Mary Easley
- Mary Hussain
- Mary Smith
- Mary Vogler
- Maryam Jahromi
- Maryrose Laguio-Vila
- Marysol Villegas
- María E. Santolaya
- María I. Rivera
- María José Reyes Fentanes
- Masaru Oshita
- Mashrur Islam Majumder
- Matthew B. Laurens
- Matthew D. Sims
- Matthew G. Davis
- Matthew Hepburn
- Matthew Hong
- Matthew Hong
- Matthew Miles
- Matthew W. Doust
- Maureen Cooney
- May-Yin Suen
- Mayur Ramesh
- Meagan Miller
- Meagan Thomas
- Megan Berman
- Meghan Teherani
- Mehdi Mirsaeidi
- Melanie Jay
- Melinda Katz
- Melissa Carr
- Melissa Gottschlich
- Melody Ronk
- Melody Werne
- Meredith McNairy
- Merlin Robb
- Mesha M. Chadwick
- Michael B. Butcher
- Michael C. Keefer
- Michael Cancilla
- Michael Cancilla
- Michael Chung
- Michael Delgado
- Michael Desjardins
- Michael E. Dever
- Michael Fay
- Michael J. Cotugno
- Michael J. Koren
- Michael J. McCartney
- Michael J. Smith
- Michael Jacobs
- Michael L. Levin
- Michael Lewis
- Michael P. Dube
- Michael R. Adams
- Michael Sciaudone
- Michael Waters
- Michele Baka
- Michele D. Reynolds
- Michele P. Andrasik
- Michele Vertucci
- Michelle DallaPiazza
- Michelle Dickey
- Michelle Haynes
- Michelle King
- Michelle L. Burgett
- Michelle Maxwell
- Michelle Saemann
- Mike Delgado
- Milagritos Tapia
- Mildred Stull
- Millie Manalo
- Milton Haber
- Mimi Van Der Leden
- Mira Baron
- Mitul Shah
- Mohamed S. Al-Ibrahim
- Mohammed Allaw
- Mohammed Antwi
- Monica B. Carrascal
- Monica Mauri
- Monica McArthur
- Monica Murray
- Monica Ruiz
- Morgan Hussey
- Morgan McLaughlin
- Mouna G. Chebib
- Murray A. Kimmel
- Nadine Rouphael
- Nafisa Saleem
- Najat Khan
- Nan Zhai
- Naomi Devine
- Natalia Leistner
- Natalie Ramirez
- Natasa Jenson
- Natasha Montoya
- Natasha Rybak
- Natasha Wilson
- Nathan Alderson
- Nathan Segall
- Neil P. Sheth
- Nelia Sanchez-Crespo
- Nelson Michael
- Nga Le
- Nicholas A. Viens
- Nicole Harrell
- Nicole L. Nollen
- Niles Eaton
- Nina Ahmad
- Njira Lucia Lugogo
- Nolan Mackey
- Norberto Fas
- Noris Peraita
- Norma Vega
- Nzeera Ketter
- Obiageli Sogbetun
- Odette Olivieri
- Oyebisi Olanrewaju
- Padma N. Mangu
- Pamela Kane
- Paola Lichtenberger
- Parke Hedges
- Parul Desai
- Patricia L. Winokur
- Patrick A. Oliver
- Patrick Flume
- Patrick Newingham
- Patty Howenstine
- Patty Price-Abbott
- Patty Reed
- Paul A. Goepfert
- Paul Bondy
- Paul Coplan
- Paul Cramer
- Paul E. Wylie
- Paul G. Matherne
- Paul H. Wakefield
- Paul J. Nugent
- Paul Kilgore
- Paul Nee
- Paul Pickrell
- Paul S. Bradley
- Paulina Miller
- Paulina Rebolledo
- Pavitra Roychoudhury
- Peta-Gay Jackson-Booth
- Pete Ducheneaux
- Peter B. Gilbert
- Peter J. Winkle
- Peter Ronco
- Philip Ponce
- Phillip Claybrook
- Phillip Levy
- Pink Folmar
- Priti Patel
- Priyantha N. Wijewardane
- Purvi Parikh
- R. Michelle Chouteau
- R. Scott McClelland
- Rachael McClennen
- Rachel Rokser
- Rafael Calderon
- Rafael Lupercio
- Rafael Mendoza
- Rajan Merchant
- Rajesh K. Davit
- Rambod Rouhbakhsh
- Ramin Herati
- Ramy J. Toma
- Raphael J. Landovitz
- Raymond Cornelison
- Rebecca Boas
- Rebecca J. Kurnat
- Rebecca P. Madan
- Rebecca Pitotti
- Rebecca Zash
- Rebone M. Maboa
- Renea Henderson
- Reuben Martinez
- Reza Parungao
- Rhodna Fouts
- Rica Santiago
- Richard Calderone
- Richard Gorman
- Richard L. Gibson
- Richard M. Glover II
- Richard M. Novak
- Richard Powell
- Richard Rupp
- Richard Starlin
- Rickey D. Manning
- Riemke Brakema
- Ripley R. Hollister
- Robert Brownlee
- Robert J. Buynak
- Robert J. Ulrich
- Robert Jeanfreau
- Robert L. Atmar
- Robert M. Grossberg
- Robert Riesenberg
- Robert S. Call
- Robert Samuels
- Robert Schmidt
- Robert Striker
- Robert W. Coombs
- Robert W. Frenck Jr.
- Roberto A. Viau Colindres
- Roberto C. Arduino
- Robin Hilder
- Robin Mason
- Robyn Hartvickson
- Rodney E. Sturgeon
- Roger J. Bedimo
- Rola G. Rucker
- Ronald Ackerman
- Ronald Lubelchek
- Roni Gray
- Rosa MacBryde
- Rosa Negron
- Rosamond Hong
- Rosario Sanchez
- Rozeli Shelly
- Rusty Greene
- Ruth Paiano
- Ruth S. Pinilla
- Ryan C. Maves
- Ryan Israelsen
- Ryan Little
- Ryan P. Starr
- Ryan Tomlinson
- S. Hasan Naqvi
- Saadia Khizer
- Sabina Raja
- Sade Tukuru
- Sally Eppenbach
- Samantha Williams
- Samira Shairi
- Sandra Erickson
- Sandra Janeth Ortega Domínguez
- Sandra Kelman
- Sandra Shelton
- Sarah Afework
- Sarah Dzigiel
- Sarah E. Rutstein
- Sarah Galloway
- Sarah Gordon
- Sarah M. Ingalsbe-Geno
- Sarah Omodele
- Satoshi Kamidani
- Sauda Muhammad
- Scott Borgetti
- Scott Kahney
- Scott N. Syndergaard
- Sebastian Garcia Escallon
- Secia Díaz-Miralrio
- Sergio E. Recuenco
- Sha-Wanda Richmond
- Shamika Huskey
- Shana Harshell
- Shanda Gower
- Shane G. Christensen
- Shannen Seversen
- Shannon Rodman
- Shannon Walker
- Sharine Phan
- Sharita Tedder-Edwards
- Sharon A. Riddler
- Sharon E. Frey
- Sharon Kohrs
- Sharon Nachman
- Sharzhaad Molina Guizar
- Shashi Kapadia
- Shauna H. Gunaratne
- Sheetal Kandiah
- Shelby Olds
- Shelby Pickle
- Sherif Naguib
- Sherrie Baker
- Sherry Lamberth
- Sheryl L. Henderson
- Shireen H. Jaffer
- Shishir K. Khetan
- Shivanjali Shankaran
- Shobha Swaminathan
- Sigridh Muñoz-Gómez
- Siham Mahgoub
- Sikhongi Phungwayo
- Silvano Omar Martínez Pérez
- Simbarashe G. Takuva
- Simmy Pinto
- Sinikka L. Green
- Sonal Munsiff
- Sonia Guerrero
- Sonja Neumeister
- Spyros A. Kalams
- Srilatha Edupuganti
- Stacy Ford
- Stacy Slechta
- Stanford Plavin
- Stefanie Mott
- Stefanie Tyson
- Stephan C. Sharp
- Stephan Hong
- Stephanie Andree
- Stephanie Rolsma
- Stephanie Skipper
- Stephanie Sterling
- Stephen A. Spector
- Stephen Daniels
- Stephen Morris
- Stephen R. Walsh
- Stephen R. Walsh
- Steve Clemons
- Steven E. Carsons
- Steven Palmer
- Steven Shinn
- Steven Shoptaw
- Steven Sperber
- Stuart H. Cohen
- Surisday Mederos
- Susan Jeanfreau
- Susan Kline
- Susan L. Koletar
- Susan Parker
- Susanne Doblecki-Lewis
- Suzanna Studdard
- Suzanne Fiorillo
- Suzanne Gharib
- Suzanne Swan
- Sybil G. Hosek
- Szheckera Fearon
- Tamara Richards
- Tambra Dora
- Tameika Scott
- Tami Wahlin
- Tammi L. Shlotzhauer
- Tana Bourgeois
- Tanya Hutchins
- Taryn Petty
- Tatiana Beresnev
- Tavane Harrison
- Taylor Nelson
- Teletha Gipson
- Teresa A. Batteiger
- Teresa Becker
- Teresa Deese
- Teresa S. Sligh
- Teri Thompson-Seim
- Terri Moye
- Terry D. Klein
- Terry L. Poling
- Terry Piedra
- Theresa Hegmann
- Thomas B. Campbell
- Thomas C. Klein
- Thomas C.S. Martin
- Thomas Mellman
- Thomas Patterson
- Thomas Weiss
- Tiffany Esinhart
- Tiffany Nemecek
- Tiffany Schwasinger-Schmidt
- Tilly Varughese
- Timothy J. Hatlen
- Timothy P. Vachris
- Timothy Shope
- Timothy W. Schacker
- Timothy Wilkin
- Tina Tong
- Tina Wang
- Toby Briskin
- Todd Simmons
- Tom Fiel
- Toni Robinson
- Toni White
- Tracy Okonya
- Tracy R. Klein
- Trina L. Reynolds
- Troy Holdeman
- Tyler D. Bold
- Uriel R. Felsen
- Valentine M. Ebuh
- Valeria D. Cantos
- Valerie K. Arnold
- Vanessa Abad
- Vanessa Raabe
- Veronica G. Fragoso
- Veronica Garcia-Fragoso
- Veronica Procasky
- Veronica Viar
- Vicki E. Miller
- Vickie Leathers
- Victoria Andriulis
- Victoria Engler
- Victoria Mosteller
- Victoria R. Anderson
- Vida Veronica Ruiz Herrera
- Vincent Huynh
- Vincent Mirkil
- Vivek Rajasekhar
- Viviana Gonzalez
- Vladimir Berthaud
- Walter Patton
- Wanda Ramon
- Waseem Chughtai
- Wayne L. Harper
- Wayne Woo
- Wendell Lewis
- Wendell Lewis III
- Wendy A. Keitel
- Wesley Campbell
- Wesley Van Ever
- Westly Keating
- Whitney West
- Will Hernandez
- William B. Davis
- William B. Smith
- William H. Jones
- William Jennings
- William Kirby
- William P. Silver
- William R. Hartman
- William S. Davis Jr.
- William Schnitz
- William Seger
- Winniberg Stephany Alvarez León
- Winston Cavert
- Xiaomi Tong
- Yaa D. Oppong
- Yi H. Wu
- Ying Huang
- Yogesh K. Paliwal
- Youyi Fong
- Yunda Huang
- Yunda Huang
- Yvonne Davis
- Zachary Bittner
- Zainab Rizvi
- Zindy Yazmín Zárate Hinojosa
- Zudi-Mwak Takizala
- Publication venue
- Elsevier
- Publication date
- 01/10/2023
- Field of study
Summary: Background: While vaccines have established utility against COVID-19, phase 3 efficacy studies have generally not comprehensively evaluated protection provided by previous infection or hybrid immunity (previous infection plus vaccination). Individual patient data from US government-supported harmonized vaccine trials provide an unprecedented sample population to address this issue. We characterized the protective efficacy of previous SARS-CoV-2 infection and hybrid immunity against COVID-19 early in the pandemic over three-to six-month follow-up and compared with vaccine-associated protection. Methods: In this post-hoc cross-protocol analysis of the Moderna, AstraZeneca, Janssen, and Novavax COVID-19 vaccine clinical trials, we allocated participants into four groups based on previous-infection status at enrolment and treatment: no previous infection/placebo; previous infection/placebo; no previous infection/vaccine; and previous infection/vaccine. The main outcome was RT-PCR-confirmed COVID-19 >7–15 days (per original protocols) after final study injection. We calculated crude and adjusted efficacy measures. Findings: Previous infection/placebo participants had a 92% decreased risk of future COVID-19 compared to no previous infection/placebo participants (overall hazard ratio [HR] ratio: 0.08; 95% CI: 0.05–0.13). Among single-dose Janssen participants, hybrid immunity conferred greater protection than vaccine alone (HR: 0.03; 95% CI: 0.01–0.10). Too few infections were observed to draw statistical inferences comparing hybrid immunity to vaccine alone for other trials. Vaccination, previous infection, and hybrid immunity all provided near-complete protection against severe disease. Interpretation: Previous infection, any hybrid immunity, and two-dose vaccination all provided substantial protection against symptomatic and severe COVID-19 through the early Delta period. Thus, as a surrogate for natural infection, vaccination remains the safest approach to protection. Funding: National Institutes of Health