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E. Variava · SciRah

Researcher profile · Semantic Scholar

E. Variava

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E. Variava — researcher profile on SciRah

h-index: 36
Works: 157
Citations: 4,688

Most-cited papers

Bedaquiline–Pretomanid–Linezolid Regimens for Drug-Resistant Tuberculosis
F. Conradie, T. Bagdasaryan, S. Borisov, P. Howell +24 more
2022New England Journal of Medicine372 citations Open access
Semantic Scholar
Global guideline for the diagnosis and management of the endemic mycoses: an initiative of the European Confederation of Medical Mycology in cooperation with the International Society for Human and Animal Mycology
G. Thompson, Thuy Le, A. Chindamporn, C. Kauffman +35 more
2021Lancet. Infectious Diseases (Print)229 citations Open access
Semantic Scholar
Decline of influenza and respiratory syncytial virus detection in facility-based surveillance during the COVID-19 pandemic, South Africa, January to October 2020
S. Tempia, S. Walaza, J. Bhiman, M. McMorrow +20 more
2021Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin125 citations Open access
Semantic Scholar
Bedaquiline, moxifloxacin, pretomanid, and pyrazinamide during the first 8 weeks of treatment of patients with drug-susceptible or drug-resistant pulmonary tuberculosis: a multicentre, open-label, partially randomised, phase 2b trial
C. Tweed, R. Dawson, D. Burger, Almari Conradie +16 more
2019The Lancet Respiratory Medicine124 citations Open access
Semantic Scholar
Efficacy and safety of delamanid in combination with an optimised background regimen for treatment of multidrug-resistant tuberculosis: a multicentre, randomised, double-blind, placebo-controlled, parallel group phase 3 trial.
F. vonGroote-Bidlingmaier, R. Patientia, E. Sánchez, V. Balanag +19 more
2019The Lancet Respiratory Medicine121 citations Open access
Semantic Scholar
High treatment success rate for multidrug-resistant and extensively drug-resistant tuberculosis using a bedaquiline-containing treatment regimen
N. Ndjeka, K. Schnippel, I. Master, G. Meintjes +14 more
2018European Respiratory Journal119 citations Open access
Semantic Scholar
Dolutegravir as First- or Second-Line Treatment for HIV-1 Infection in Children
A. Turkova, E. White, H. Mujuru, A. Kekitiinwa +41 more
2021New England Journal of Medicine111 citations Open access
Semantic Scholar
Assessment of epidemiological and genetic characteristics and clinical outcomes of resistance to bedaquiline in patients treated for rifampicin-resistant tuberculosis: a cross-sectional and longitudinal study.
N. Ismail, S. Omar, H. Moultrie, Z. Bhyat +20 more
2021Lancet. Infectious Diseases (Print)90 citations Open access
Semantic Scholar
A partially randomised trial of pretomanid, moxifloxacin and pyrazinamide for pulmonary TB
C. Tweed, G. Wills, A. Crook, E. Amukoye +35 more
2021The International Journal of Tuberculosis and Lung Disease55 citations Open access
Semantic Scholar
Southern African HIV Clinicians Society guideline for the prevention, diagnosis and management of cryptococcal disease among HIV-infected persons: 2019 update
N. Govender, G. Meintjes, P. Mangena, J. Nel +25 more
2019Southern African Journal of HIV Medicine50 citations Open access
Semantic Scholar
An All-Oral 6-Month Regimen for Multidrug-Resistant TB (the NExT Study): A Multicenter, Randomized Controlled Trial.
A. Esmail, S. Oelofse, C. Dufauret Lombard, R. Perumal +20 more
2022American Journal of Respiratory and Critical Care Medicine46 citations
Semantic Scholar
Prevalence and Correlates of Smoking Among People Living With HIV in South Africa
J. Elf, E. Variava, Sandy Chon, L. Lebina +6 more
2018Nicotine & Tobacco Research43 citations Open access
Semantic Scholar
Health and economic burden of influenza‐associated illness in South Africa, 2013‐2015
S. Tempia, J. Moyes, A. Cohen, S. Walaza +11 more
2019Influenza and Other Respiratory Viruses42 citations Open access
Semantic Scholar
Performance of Surveillance Case Definitions in Detecting Respiratory Syncytial Virus Infection Among Young Children Hospitalized With Severe Respiratory Illness-South Africa, 2009-2014.
B. Rha, Rebecca Dahl, J. Moyes, A. Binder +12 more
2018Journal of the Pediatric Infectious Diseases Society41 citations Open access
Semantic Scholar
Bedaquiline-pretomanid-moxifloxacin-pyrazinamide for drug-sensitive and drug-resistant pulmonary tuberculosis treatment: a phase 2c, open-label, multicentre, partially randomised controlled trial.
M. Cevik, Lindsay C Thompson, C. Upton, V. Rolla +32 more
2024Lancet. Infectious Diseases (Print)39 citations Open access
Semantic Scholar
Quantifying How Different Clinical Presentations, Levels of Severity, and Healthcare Attendance Shape the Burden of Influenza-associated Illness: A Modeling Study From South Africa
S. Tempia, S. Walaza, J. Moyes, A. Cohen +11 more
2018Clinical Infectious Diseases36 citations Open access
Semantic Scholar
Prevalence and risk factors for latent tuberculosis infection among household contacts of index cases in two South African provinces: Analysis of baseline data from a cluster-randomised trial
P. MacPherson, L. Lebina, K. Motsomi, Z. Bosch +7 more
2020PLoS ONE30 citations Open access
Semantic Scholar
Epidemiology and Molecular Identification and Characterization of Mycoplasma pneumoniae, South Africa, 2012–2015
M. Carrim, N. Wolter, Álvaro J. Benítez, S. Tempia +12 more
2018Emerging Infectious Diseases30 citations Open access
Semantic Scholar
Once-daily dolutegravir-based antiretroviral therapy in infants and children living with HIV from age 4 weeks: results from the below 14 kg cohort in the randomised ODYSSEY trial
P. Amuge, A. Lugemwa, B. Wynne, H. Mujuru +25 more
2022The Lancet HIV28 citations Open access
Semantic Scholar
The Impact of Influenza and Tuberculosis Interaction on Mortality Among Individuals Aged ≥15 Years Hospitalized With Severe Respiratory Illness in South Africa, 2010–2016
S. Walaza, S. Tempia, H. Dawood, E. Variava +13 more
2019Open Forum Infectious Diseases26 citations Open access
Semantic Scholar
Enterovirus genotypes among patients with severe acute respiratory illness, influenza-like illness, and asymptomatic individuals in South Africa, 2012–2014
Orienka Hellferscee, S. Tempia, S. Walaza, E. Variava +6 more
2017Journal of Medical Virology25 citations Open access
Semantic Scholar
Human bocavirus, coronavirus, and polyomavirus detected among patients hospitalised with severe acute respiratory illness in South Africa, 2012 to 2013
K. Subramoney, Orienka Hellferscee, M. Pretorius, S. Tempia +11 more
2018Health Science Reports24 citations Open access
Semantic Scholar
Dolutegravir twice-daily dosing in children with HIV-associated tuberculosis: a pharmacokinetic and safety study within the open-label, multicentre, randomised, non-inferiority ODYSSEY trial
A. Turkova, Hylke Waalewijn, Man K. Chan, P. Bollen +19 more
2022The Lancet HIV22 citations Open access
Semantic Scholar
Healthcare utilization for common infectious disease syndromes in Soweto and Klerksdorp, South Africa
Karen K. Wong, C. von Mollendorf, N. Martinson, S. Norris +7 more
2018The Pan African Medical Journal22 citations Open access
Semantic Scholar
The economic burden of RSV-associated illness in children aged < 5 years, South Africa 2011–2016
J. Moyes, S. Tempia, S. Walaza, M. McMorrow +8 more
2022BMC Medicine21 citations Open access
Semantic Scholar
The effects of the attributable fraction and the duration of symptoms on burden estimates of influenza‐associated respiratory illnesses in a high HIV prevalence setting, South Africa, 2013‐2015
S. Tempia, S. Walaza, J. Moyes, A. Cohen +15 more
2018Influenza and Other Respiratory Viruses21 citations Open access
Semantic Scholar
Indoor air pollution from secondhand tobacco smoke, solid fuels, and kerosene in homes with active tuberculosis disease in South Africa
J. Elf, Onyinyechi F. Eke, Modiehi H. Rakgokong, E. Variava +7 more
2017BMC Research Notes21 citations Open access
Semantic Scholar
Key risk factors for substance use among female sex workers in Soweto and Klerksdorp, South Africa: A cross-sectional study
E. Yeo, Khuthadzo Hlongwane, K. Otwombe, K. Hopkins +5 more
2022PLoS ONE19 citations Open access
Semantic Scholar
The burden of RSV-associated illness in children aged < 5 years, South Africa, 2011 to 2016
J. Moyes, S. Tempia, S. Walaza, M. McMorrow +8 more
2022BMC Medicine18 citations Open access
Semantic Scholar
Readmission and death following hospitalization among people with HIV in South Africa
C. Hoffmann, M. Milovanovic, C. Cichowitz, A. Kinghorn +2 more
2019PLoS ONE17 citations Open access
Semantic Scholar
Influenza Viral Shedding in a Prospective Cohort of HIV-Infected and Uninfected Children and Adults in 2 Provinces of South Africa, 2012–2014
C. von Mollendorf, Orienka Hellferscee, Z. Valley-Omar, F. Treurnicht +10 more
2018Journal of Infectious Diseases16 citations Open access
Semantic Scholar
Remote Ischaemic Conditioning in STEMI Patients in Sub-Saharan AFRICA: Rationale and Study Design for the RIC-AFRICA Trial
Kishal Lukhna, D. Hausenloy, Abdelbagi Sidahmed Ali, A. Bajaber +25 more
2021Cardiovascular Drugs and Therapy15 citations Open access
Semantic Scholar
The Manipulation of the Lipid Mediator Metabolism as Adjunct Host-Directed Therapy in Tuberculosis
A. Nienaber, F. Hayford, E. Variava, N. Martinson +1 more
2021Frontiers in Immunology14 citations Open access
Semantic Scholar
Intensified household contact tracing, prevention and treatment support versus enhanced standard of care for contacts of tuberculosis cases in South Africa: study protocol for a household cluster-randomised trial
P. MacPherson, E. Webb, E. Variava, S. Lala +5 more
2019BMC Infectious Diseases14 citations Open access
Semantic Scholar
Human respiratory syncytial virus diversity and epidemiology among patients hospitalized with severe respiratory illness in South Africa, 2012–2015
Z. Valley-Omar, S. Tempia, Orienka Hellferscee, S. Walaza +12 more
2021Influenza and Other Respiratory Viruses13 citations Open access
Semantic Scholar
Hospitalization and post-discharge care in South Africa: A critical event in the continuum of care
C. Cichowitz, Rachael A. Pellegrino, Katlego Motlhaoleng, N. Martinson +2 more
2018PLoS ONE13 citations Open access
Semantic Scholar
Effect of HIV on mortality among hospitalised patients in South Africa
D. J. Lamprecht, N. Martinson, E. Variava
2023Southern African Journal of HIV Medicine12 citations Open access
Semantic Scholar
The national burden of influenza‐like illness and severe respiratory illness overall and associated with nine respiratory viruses in South Africa, 2013–2015
S. Tempia, J. Moyes, A. Cohen, S. Walaza +8 more
2021Influenza and Other Respiratory Viruses12 citations Open access
Semantic Scholar
Sputum culture and drug sensitivity testing outcome among X-pert MTB/Rif positive, rifampicin resistant sputa: A retrospective study - Not all rifampicin resistance is MDR.
L. Kenaope, Hannetjie Ferreira, F. Seedat, K. Otwombe +2 more
2019Journal of Global Antimicrobial Resistance12 citations Open access
Semantic Scholar
Epidemiology of pertussis in individuals of all ages hospitalised with respiratory illness in South Africa, January 2013 - December 2018.
N. Wolter, C. Cohen, S. Tempia, S. Walaza +8 more
2021Clinical Infectious Diseases11 citations Open access
Semantic Scholar
Improving TPT Uptake: A Cluster-Randomized Trial of Symptom-Based Versus Tuberculin Skin Test-Based Screening of Household Tuberculosis Contacts Less than 5 Years of Age.
N. Salazar-Austin, S. Cohn, G. Barnes, Molefi Tladi +6 more
2019Clinical Infectious Diseases11 citations Open access
Semantic Scholar
Predictors of time to sputum culture conversion in multi-drug-resistant tuberculosis and extensively drug-resistant tuberculosis in patients at Tshepong-Klerksdorp Hospital
R. Ncha, E. Variava, K. Otwombe, M. Kawonga +1 more
2019Southern African Journal of Infectious Diseases11 citations Open access
Semantic Scholar
Challenges and clinical relevance of molecular detection of Bordetella pertussis in South Africa
F. Moosa, M. du Plessis, N. Wolter, M. Carrim +7 more
2019BMC Infectious Diseases11 citations Open access
Semantic Scholar
Value stream mapping to characterize value and waste associated with accessing HIV care in South Africa
C. Hoffmann, M. Milovanovic, A. Kinghorn, Hae-Young Kim +3 more
2018PLoS ONE11 citations Open access
Semantic Scholar
Influenza disease burden among potential target risk groups for immunization in South Africa, 2013–2015
S. Tempia, S. Walaza, J. Moyes, M. McMorrow +11 more
2020Vaccine10 citations Open access
Semantic Scholar
Venous thromboembolic disease in adults admitted to hospital in a setting with a high burden of HIV and TB
P. Moodley, N. Martinson, Wendy Joyimbana, K. Otwombe +4 more
2021African Journal of Thoracic and Critical Care Medicine9 citations Open access
Semantic Scholar
Secure Delivery of HIV-Related and Tuberculosis Laboratory Results to Patient Cell Phones: A Pilot Comparative Study
L. DiAndreth, Brooke A. Jarrett, J. Elf, Thamanna Nishath +9 more
2020Aids and Behavior9 citations
Semantic Scholar
Risk Factors for Severe Coronavirus Disease 2019 Among Human Immunodeficiency Virus-Infected and -Uninfected Individuals in South Africa, April 2020–March 2022: Data From Sentinel Surveillance
S. Walaza, S. Tempia, A. von Gottberg, N. Wolter +16 more
2022Open Forum Infectious Diseases8 citations Open access
Semantic Scholar
Healthcare and Climate Change: A South African Health Professionals’ Perspective
A. Manga, Denis Dartchiev, E. Variava
2022Wits Journal of Clinical Medicine8 citations Open access
Semantic Scholar
Prevalence and Correlates of Snuff Use, and its Association With Tuberculosis, Among Women Living With HIV in South Africa.
J. Elf, E. Variava, Sandy Chon, L. Lebina +6 more
2018Nicotine & Tobacco Research8 citations Open access
Semantic Scholar

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N. Martinson×20
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N. Martinson — researcher profile on SciRah
S. Tempia×19
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S. Tempia — researcher profile on SciRah
S. Walaza×19
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S. Walaza — researcher profile on SciRah
C. Cohen×19
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C. Cohen — researcher profile on SciRah

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H. Dawood — researcher profile on SciRah

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N. Wolter — researcher profile on SciRah

F. Treurnicht×16

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F. Treurnicht — researcher profile on SciRah

A. von Gottberg×15

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A. von Gottberg — researcher profile on SciRah

M. McMorrow×14

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M. McMorrow — researcher profile on SciRah

Orienka Hellferscee×13

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Orienka Hellferscee — researcher profile on SciRah

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J. Moyes — researcher profile on SciRah

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A. Cohen — researcher profile on SciRah