Author Correction: Bacteriological diagnosis of childhood TB: a prospective observational study by Andrew J. Brent, Daisy Mugo, Robert Musyimi, Agnes Mutiso, Susan C. Morpeth, Michael Levin, J. Anthony G. Scott

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The prevalence and risk factors for pneumococcal colonization of the nasopharynx among children in Kilifi District, Kenya. by Osman Abdullahi, Angela Karani, Caroline C Tigoi, Daisy Mugo, Stella Kungu, Eva Wanjiru, Jane Jomo, Robert Musyimi, Marc Lipsitch, J Anthony G Scott

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Validation of saline, PBS and a locally produced VTM at varying storage conditions to detect the SARS-CoV-2 virus by qRT-PCR by Caroline Ngetsa, Victor Osoti, Dorcas Okanda, Faith Marura, Krupali Shah, Henry Karanja, Daisy Mugo, John Gitonga, Martin Mutunga, Clement Lewa, Benedict Orindi, Philip Bejon, Lynette Isabella Ochola-Oyier

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Validation of saline, PBS and a locally produced VTM at varying storage conditions to detect the SARS-CoV-2 virus by qRT-PCR. by Caroline Ngetsa, Victor Osoti, Dorcas Okanda, Faith Marura, Krupali Shah, Henry Karanja, Daisy Mugo, John Gitonga, Martin Mutunga, Clement Lewa, Benedict Orindi, Philip Bejon, Lynette Isabella Ochola-Oyier

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Serum immunoglobulin G and mucosal immunoglobulin A antibodies from prepandemic samples collected in Kilifi, Kenya, neutralize SARS-CoV-2 in vitro by James Nyagwange, Bernadette Kutima, Kennedy Mwai, Henry K. Karanja, John N. Gitonga, Daisy Mugo, Yiakon Sein, Daniel Wright, Donwilliams O. Omuoyo, Joyce U. Nyiro, James Tuju, D. James Nokes, Ambrose Agweyu, Philip Bejon, Lynette I. Ochola-Oyier, J． Anthony G. Scott, Teresa Lambe, Eunice Nduati, Charles Agoti, George M. Warimwe

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Epidemiology of COVID-19 infections on routine polymerase chain reaction (PCR) and serology testing in Coastal Kenya [version 1; peer review: 2 approved] by Henry Karanja, Daisy Mugo, D.J. Nokes, James Nyagwange, Lynette Isabella Ochola-Oyier, Kelvin Muteru, Leonard Ndwiga, Bernadette Kutima, Patrick Amoth, George Githinji, Kevin Wamae, Kadondi Kasera, Nickson Murunga, Lawrence Babu, Edwine Barasa, John Gitonga, Benjamin Tsofa, Philip Bejon, George Warimwe, James Tuju, Benedict Orindi, Charles N. Agoti, COVID testing team, Edward Otieno

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Safety and immunogenicity of ChAdOx1 nCoV-19 (AZD1222) vaccine in adults in Kenya: a phase 1/2 single-blind, randomised controlled trial [version 2; peer review: 2 approved] by Mainga Hamaluba, Cynthia Mauncho, Neema Mturi, Henry Karanja, Daisy Mugo, James Nyagwange, Caroline Ngetsa, Bernadette Kutima, Samuel Sang, John N. Gitonga, Benjamin Tsofa, Philip Bejon, Naomi Kamau, George Warimwe, Benedict Orindi, Irene Njau, Mwaganyuma Mwatasa, Lynette Ochola-Oyier, Donwilliams Omuoyo, Elizaphan Oloo, Stanley Cheruiyot, Eunice W. Nduati, Roselyne Namayi, Anthony Etyang, Nadia Aliyan, Adrian Hill, Amy Boyd, Marianne Munene, Alexander Douglas, Amek Nyaguara, Sarah Gilbert, Daniel Wright, Teresa Lambe, Charles Agoti, Kadondi Kasera, Alun Davies, Andrew Pollard, Noni Mumba

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Temporal trends of SARS-CoV-2 seroprevalence during the first wave of the COVID-19 epidemic in Kenya by Ifedayo M. O. Adetifa, Sophie Uyoga, John N. Gitonga, Daisy Mugo, Mark Otiende, James Nyagwange, Henry K. Karanja, James Tuju, Perpetual Wanjiku, Rashid Aman, Mercy Mwangangi, Patrick Amoth, Kadondi Kasera, Wangari Ng’ang’a, Charles Rombo, Christine Yegon, Khamisi Kithi, Elizabeth Odhiambo, Thomas Rotich, Irene Orgut, Sammy Kihara, Christian Bottomley, Eunice W. Kagucia, Katherine E. Gallagher, Anthony Etyang, Shirine Voller, Teresa Lambe, Daniel Wright, Edwine Barasa, Benjamin Tsofa, Philip Bejon, Lynette I. Ochola-Oyier, Ambrose Agweyu, J. Anthony G. Scott, George M. Warimwe

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Pooled testing conserves SARS-CoV-2 laboratory resources and improves test turn-around time: experience on the Kenyan Coast [version 1; peer review: 3 approved] by Charles N. Agoti, Martin Mutunga, Arnold W. Lambisia, Domtila Kimani, Robinson Cheruiyot, Patience Kiyuka, Clement Lewa, Elijah Gicheru, Metrine Tendwa, Khadija Said Mohammed, Victor Osoti, Johnstone Makale, Brian Tawa, Calleb Odundo, Wesley Cheruiyot, Wilfred Nyamu, Wilson Gumbi, Jedidah Mwacharo, Lydia Nyamako, Edward Otieno, David Amadi, Janet Thoya, Angela Karani, Daisy Mugo, Jennifer Musyoki, Horace Gumba, Salim Mwarumba, Bonface M. Gichuki, Susan Njuguna, Debra Riako, Shadrack Mutua, John N. Gitonga, Yiakon Sein, Brian Bartilol, Shaban J. Mwangi, Donwilliams O. Omuoyo, John M. Morobe, Zaydah R. de Laurent, Philip Bejon, Lynette Isabella Ochola-Oyier, Benjamin Tsofa

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Pooled testing conserves SARS-CoV-2 laboratory resources and improves test turn-around time: experience on the Kenyan Coast [version 2; peer review: 3 approved] by Charles N. Agoti, Martin Mutunga, Arnold W. Lambisia, Domtila Kimani, Robinson Cheruiyot, Patience Kiyuka, Clement Lewa, Elijah Gicheru, Metrine Tendwa, Khadija Said Mohammed, Victor Osoti, Johnstone Makale, Brian Tawa, Calleb Odundo, Wesley Cheruiyot, Wilfred Nyamu, Wilson Gumbi, Jedidah Mwacharo, Lydia Nyamako, Edward Otieno, David Amadi, Janet Thoya, Angela Karani, Daisy Mugo, Jennifer Musyoki, Horace Gumba, Salim Mwarumba, Bonface M. Gichuki, Susan Njuguna, Debra Riako, Shadrack Mutua, John N. Gitonga, Yiakon Sein, Brian Bartilol, Shaban J. Mwangi, Donwilliams O. Omuoyo, John M. Morobe, Zaydah R. de Laurent, Philip Bejon, Lynette Isabella Ochola-Oyier, Benjamin Tsofa

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SARS-CoV-2 seroprevalence in three Kenyan health and demographic surveillance sites, December 2020-May 2021. by Anthony O Etyang, Ifedayo Adetifa, Richard Omore, Thomas Misore, Abdhalah K Ziraba, Maurine A Ng'oda, Evelyn Gitau, John Gitonga, Daisy Mugo, Bernadette Kutima, Henry Karanja, Monica Toroitich, James Nyagwange, James Tuju, Perpetual Wanjiku, Rashid Aman, Patrick Amoth, Mercy Mwangangi, Kadondi Kasera, Wangari Ng'ang'a, Donald Akech, Antipa Sigilai, Boniface Karia, Angela Karani, Shirine Voller, Charles N Agoti, Lynette I Ochola-Oyier, Mark Otiende, Christian Bottomley, Amek Nyaguara, Sophie Uyoga, Katherine Gallagher, Eunice W Kagucia, Dickens Onyango, Benjamin Tsofa, Joseph Mwangangi, Eric Maitha, Edwine Barasa, Philip Bejon, George M Warimwe, J Anthony G Scott, Ambrose Agweyu

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Sero-surveillance for IgG to SARS-CoV-2 at antenatal care clinics in three Kenyan referral hospitals: Repeated cross-sectional surveys 2020–21 by Ruth K. Lucinde, Daisy Mugo, Christian Bottomley, Angela Karani, Elizabeth Gardiner, Rabia Aziza, John N. Gitonga, Henry Karanja, James Nyagwange, James Tuju, Perpetual Wanjiku, Edward Nzomo, Evans Kamuri, Kaugiria Thuranira, Sarah Agunda, Gideon Nyutu, Anthony O. Etyang, Ifedayo M. O. Adetifa, Eunice Kagucia, Sophie Uyoga, Mark Otiende, Edward Otieno, Leonard Ndwiga, Charles N. Agoti, Rashid A. Aman, Mercy Mwangangi, Patrick Amoth, Kadondi Kasera, Amek Nyaguara, Wangari Ng’ang’a, Lucy B. Ochola, Emukule Namdala, Oscar Gaunya, Rosemary Okuku, Edwine Barasa, Philip Bejon, Benjamin Tsofa, L. Isabella Ochola-Oyier, George M. Warimwe, Ambrose Agweyu, J. Anthony G. Scott, Katherine E. Gallagher

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Sero-surveillance for IgG to SARS-CoV-2 at antenatal care clinics in three Kenyan referral hospitals: Repeated cross-sectional surveys 2020-21. by Ruth K Lucinde, Daisy Mugo, Christian Bottomley, Angela Karani, Elizabeth Gardiner, Rabia Aziza, John N Gitonga, Henry Karanja, James Nyagwange, James Tuju, Perpetual Wanjiku, Edward Nzomo, Evans Kamuri, Kaugiria Thuranira, Sarah Agunda, Gideon Nyutu, Anthony O Etyang, Ifedayo M O Adetifa, Eunice Kagucia, Sophie Uyoga, Mark Otiende, Edward Otieno, Leonard Ndwiga, Charles N Agoti, Rashid A Aman, Mercy Mwangangi, Patrick Amoth, Kadondi Kasera, Amek Nyaguara, Wangari Ng'ang'a, Lucy B Ochola, Emukule Namdala, Oscar Gaunya, Rosemary Okuku, Edwine Barasa, Philip Bejon, Benjamin Tsofa, L Isabella Ochola-Oyier, George M Warimwe, Ambrose Agweyu, J Anthony G Scott, Katherine E Gallagher

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SARS-CoV-2 seroprevalence in three Kenyan health and demographic surveillance sites, December 2020-May 2021 by Anthony O. Etyang, Ifedayo Adetifa, Richard Omore, Thomas Misore, Abdhalah K. Ziraba, Maurine A. Ng’oda, Evelyn Gitau, John Gitonga, Daisy Mugo, Bernadette Kutima, Henry Karanja, Monica Toroitich, James Nyagwange, James Tuju, Perpetual Wanjiku, Rashid Aman, Patrick Amoth, Mercy Mwangangi, Kadondi Kasera, Wangari Ng’ang’a, Donald Akech, Antipa Sigilai, Boniface Karia, Angela Karani, Shirine Voller, Charles N. Agoti, Lynette I. Ochola-Oyier, Mark Otiende, Christian Bottomley, Amek Nyaguara, Sophie Uyoga, Katherine Gallagher, Eunice W. Kagucia, Dickens Onyango, Benjamin Tsofa, Joseph Mwangangi, Eric Maitha, Edwine Barasa, Philip Bejon, George M. Warimwe, J. Anthony G. Scott, Ambrose Agweyu

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An optimization of four SARS-CoV-2 qRT-PCR assays in a Kenyan laboratory to support the national COVID-19 rapid response teams [version 2; peer review: 2 approved] by Shadrack Mutua, Brian Bartilol, Shaban J. Mwangi, Debra Riako, Lydia Nyamako, Bonface M. Gichuki, Henry Karanja, Angela Karani, John N. Gitonga, Daisy Mugo, Brian Tawa, Wilson Gumbi, Wesley Cheruiyot, Metrine Tendwa, John K. Nyambu, Yiakon Sein, Thani Suleiman Thani, Shem O. Patta, Benson Kitole, Eric K. Maitha, Barke S. Muslih, Mohamed S. Mwakinangu, Philip Bejon, Benjamin Tsofa, Joyce U. Nyiro, John Ochieng Otieno, Leonard Ndwiga, Patience Kiyuka, Johnstone Makale, Kevin Wamae, Victor Osoti, John Mwita Morobe, Calleb Odundo, Arnold W. Lambisia, Martin Mutunga, Salim Mwarumba, Lynette Isabella Ochola-Oyier, Charles N. Agoti, Clement Lewa, Elijah Gicheru, Jennifer Musyoki, Susan Njuguna, Horace Gumba, Domtila Kimani, Jedidah Mwacharo, Zaydah R. de Laurent, Khadija Said Mohammed, Robinson Cheruiyot, Donwilliams O. Omuoyo

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Maintaining laboratory quality assurance and safety in a pandemic: Experiences from the KEMRI-Wellcome Trust Research Programme laboratory’s COVID-19 response [version 2; peer revi... by Shadrack Mutua, Brian Bartilol, Debra Riako, Lydia Nyamako, Angela Karani, Daisy Mugo, Brian Tawa, Michael Opiyo, Wesley Cheruiyot, Metrine Tendwa, Oscar Kai, Caroline Ngetsa, Yiakon Sein, Nelson Ouma, Arnold W. Lambisia, Bonface M. Gichuki, Boniface Karia, John M. Morobe, Shaban Mwangi, Benjamin Tsofa, Philip Bejon, Alfred Mwakubia, Fredrick Mitsanze, Kelly Ominde, Patience Kiyuka, Martin Rono, Johnstone Makale, Agnes Mutiso, Perpetual Wanjiku, Victor Osoti, John N. Gitonga, Alfred Mwanzu, Calleb Odundo, Martin Mutunga, Salim Mwarumba, Donwilliams O. Omuoyo, Amek Nyaguara, Clement Lewa, Elijah Gicheru, Wilson Gumbi, Jennifer Musyoki, Susan Njuguna, Moses Mosobo, Lynette Isabella Ochola-Oyier, Horace Gumba, Wilfred Nyamu, Khadija Said Mohammed, Janet Thoya, Edward Otieno, Domtila Kimani, Jedidah Mwacharo, David Amadi, Charles N. Agoti, Zaydah R. de Laurent, Robinson Cheruiyot

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