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Thompson CR, Torres PM, Kontogianni K, Byrne RL, Noguera SV, Luna-Muschi A, Marchi AP, Andrade PS, dos Santos Barboza A, Nishikawara M, Body R, de Vos M, Escadafal C, Adams E, Figueiredo Costa S, Cubas-Atienzar AI. Multicenter Diagnostic Evaluation of OnSite COVID-19 Rapid Test (CTK Biotech) among Symptomatic Individuals in Brazil and the United Kingdom. Microbiol Spectr 2023; 11:e0504422. [PMID: 37212699 PMCID: PMC10269675 DOI: 10.1128/spectrum.05044-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 04/17/2023] [Indexed: 05/23/2023] Open
Abstract
The COVID-19 pandemic has given rise to numerous commercially available antigen rapid diagnostic tests (Ag-RDTs). To generate and to share accurate and independent data with the global community requires multisite prospective diagnostic evaluations of Ag-RDTs. This report describes the clinical evaluation of the OnSite COVID-19 rapid test (CTK Biotech, CA, USA) in Brazil and the United Kingdom. A total of 496 paired nasopharyngeal (NP) swabs were collected from symptomatic health care workers at Hospital das Clínicas in São Paulo, Brazil, and 211 NP swabs were collected from symptomatic participants at a COVID-19 drive-through testing site in Liverpool, United Kingdom. Swabs were analyzed by Ag-RDT, and results were compared to quantitative reverse transcriptase PCR (RT-qPCR). The clinical sensitivity of the OnSite COVID-19 rapid test in Brazil was 90.3% (95% confidence interval [CI], 75.1 to 96.7%) and in the United Kingdom was 75.3% (95% CI, 64.6 to 83.6%). The clinical specificity in Brazil was 99.4% (95% CI, 98.1 to 99.8%) and in the United Kingdom was 95.5% (95% CI, 90.6 to 97.9%). Concurrently, analytical evaluation of the Ag-RDT was assessed using direct culture supernatant of SARS-CoV-2 strains from wild-type (WT), Alpha, Delta, Gamma, and Omicron lineages. This study provides comparative performance of an Ag-RDT across two different settings, geographical areas, and populations. Overall, the OnSite Ag-RDT demonstrated a lower clinical sensitivity than claimed by the manufacturer. The sensitivity and specificity from the Brazil study fulfilled the performance criteria determined by the World Health Organization, but the performance obtained from the UK study failed to do. Further evaluation of Ag-RDTs should include harmonized protocols between laboratories to facilitate comparison between settings. IMPORTANCE Evaluating rapid diagnostic tests in diverse populations is essential to improving diagnostic responses as it gives an indication of the accuracy in real-world scenarios. In the case of rapid diagnostic testing within this pandemic, lateral flow tests that meet the minimum requirements for sensitivity and specificity can play a key role in increasing testing capacity, allowing timely clinical management of those infected, and protecting health care systems. This is particularly valuable in settings where access to the test gold standard is often restricted.
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Affiliation(s)
- Caitlin R. Thompson
- Liverpool School of Tropical Medicine, Centre for Drugs and Diagnostics, Liverpool, United Kingdom
| | - Pablo Muñoz Torres
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Konstantina Kontogianni
- Liverpool School of Tropical Medicine, Centre for Drugs and Diagnostics, Liverpool, United Kingdom
| | - Rachel L. Byrne
- Liverpool School of Tropical Medicine, Centre for Drugs and Diagnostics, Liverpool, United Kingdom
| | - LSTM Diagnostic group
- Liverpool School of Tropical Medicine, Centre for Drugs and Diagnostics, Liverpool, United Kingdom
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Department of Epidemiology, School of Public Health of University of São Paulo, São Paulo, Brazil
- Centro de atendimento ao colaborador, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Divisão de Laboratório Central, Hospital das Clinicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- FIND, Geneva, Switzerland
- Manchester University NHS Foundation Trust, Manchester, United Kingdom
- Global Access Diagnostics, Thurleigh, Bedfordshire, United Kingdom
| | - Saidy Vásconez Noguera
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Alessandra Luna-Muschi
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Ana Paula Marchi
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Pâmela S. Andrade
- Department of Epidemiology, School of Public Health of University of São Paulo, São Paulo, Brazil
| | - Antonio dos Santos Barboza
- Centro de atendimento ao colaborador, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Marli Nishikawara
- Centro de atendimento ao colaborador, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - CONDOR steering group
- Liverpool School of Tropical Medicine, Centre for Drugs and Diagnostics, Liverpool, United Kingdom
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Department of Epidemiology, School of Public Health of University of São Paulo, São Paulo, Brazil
- Centro de atendimento ao colaborador, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Divisão de Laboratório Central, Hospital das Clinicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- FIND, Geneva, Switzerland
- Manchester University NHS Foundation Trust, Manchester, United Kingdom
- Global Access Diagnostics, Thurleigh, Bedfordshire, United Kingdom
| | - Richard Body
- Manchester University NHS Foundation Trust, Manchester, United Kingdom
| | | | - Camille Escadafal
- Divisão de Laboratório Central, Hospital das Clinicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Emily Adams
- Liverpool School of Tropical Medicine, Centre for Drugs and Diagnostics, Liverpool, United Kingdom
- Global Access Diagnostics, Thurleigh, Bedfordshire, United Kingdom
| | - Silvia Figueiredo Costa
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Ana I. Cubas-Atienzar
- Liverpool School of Tropical Medicine, Centre for Drugs and Diagnostics, Liverpool, United Kingdom
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Heinisch MR, Medeiros-Sousa AR, Andrade PS, Urbinatti PR, Almeida RMMS, Lima-Camara TN. FAUNA AND VIROLOGICAL INVESTIGATION OF MOSQUITOES IN URBAN PARKS IN SÃO PAULO, BRAZIL. J Am Mosq Control Assoc 2023:493439. [PMID: 37270913 DOI: 10.2987/22-7108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The mosquito fauna in urban parks in the city of São Paulo, Brazil, was investigated and compared for richness and diversity, and the abundance of each species was associated with climatic variables. Simultaneously, a virological investigation was performed to test the presence of Flavivirus and Alphavirus. Aspirations of adult mosquitoes were conducted in 3 urban parks for 3 consecutive weeks of each season between October 2018 and January 2020. A total of 2,388 mosquitoes were identified, with Culex quinquefasciatus, Cx. nigripalpus, and Aedes aegypti being the most abundant species. Mosquito assemblages showed similar richness and diversity, showing variability in individual results. Temperatures and Ae. aegypti abundance correlated significantly in one of the parks investigated herein. Urban parks represent areas of shelter and refuge for both anthropophilic and opportunistic species, such as Cx. quinquefasciatus and Ae. aegypti, as well as species that still need moderately preserved environments to develop.
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Andrade PS, Valença IN, Heinisch MRS, Rocha EC, Fernandes LN, Faria NR, Sabino EC, Lima-Camara TN. First Report of Wenzhou sobemo-like virus 4 in Aedes albopictus (Diptera: Culicidae) in Latin America. Viruses 2022; 14:v14112341. [PMID: 36366436 PMCID: PMC9696862 DOI: 10.3390/v14112341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 02/01/2023] Open
Abstract
Insect-specific viruses (ISVs) are viruses that replicate exclusively in arthropod cells. Many ISVs have been studied in mosquitoes as many of them act as vectors for human etiological agents, such as arboviruses. Aedes (Stegomyia) albopictus is an important potential vector of several arboviruses in Brazil, such as dengue (DENV), Zika (ZIKV) and chikungunya (CHIKV). The development of next-generation sequencing metagenomics has enabled the discovery and characterization of new ISVs. Ae. albopictus eggs were collected using oviposition traps placed in two urban parks in the city of São Paulo, Brazil. The Aedes albopictus females were divided into pools and the genetic material was extracted and processed for sequencing by metagenomics. Complete genomes of ISV Wenzhou sobemo-like virus 4 (WSLV4) were obtained in three of the four pools tested. This is the first detection of ISV WSLV4 in Ae. albopictus females in Latin America. Further studies on ISVs in Ae. albopictus are needed to better understand the role of this species in the dynamics of arbovirus transmission in the Americas.
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Affiliation(s)
- Pâmela S. Andrade
- Department of Epidemiology, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil
- Institute of Tropical Medicine, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-000, Brazil
- Correspondence:
| | - Ian N. Valença
- Institute of Tropical Medicine, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-000, Brazil
- Department of Infectious and Parasitic Diseases, Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Marta R. S. Heinisch
- Department of Epidemiology, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil
| | - Esmenia C. Rocha
- Institute of Tropical Medicine, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-000, Brazil
| | - Lícia N. Fernandes
- Medical Research Laboratory 49, Institute of Tropical Medicine, Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Nuno R. Faria
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London W2 1PG, UK
| | - Ester C. Sabino
- Institute of Tropical Medicine, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-000, Brazil
- Department of Infectious and Parasitic Diseases, Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Tamara N. Lima-Camara
- Department of Epidemiology, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil
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Luna-Muschi A, Noguera SV, Borges IC, De Paula AV, Côrtes MF, Larocca C, Mari JF, Pereira Guimarães LS, Torres PM, Scaccia N, Villas-Boas LS, da Silva AR, Andrade PS, Teixeira JC, Escadafal C, de Oliveira VF, Tozetto-Mendoza TR, Mendes-Correa MC, Levin AS, Sabino EC, Costa SF. Characterization of SARS-CoV-2 Omicron variant shedding and predictors of viral culture positivity on vaccinated healthcare workers with mild COVID-19. J Infect Dis 2022; 226:1726-1730. [PMID: 36134610 PMCID: PMC9619435 DOI: 10.1093/infdis/jiac391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/20/2022] [Indexed: 11/25/2022] Open
Abstract
In this prospective cohort of 30 vaccinated healthcare workers with mild Omicron variant infection, we evaluated viral culture, rapid antigen test (RAT), and real-time reverse-transcription polymerase chain reaction (RT-PCR) of respiratory samples at days 5, 7, 10, and 14. Viral culture was positive in 46% (11/24) and 20% (6/30) of samples at days 5 and 7, respectively. RAT and RT-PCR (Ct ≤35) showed 100% negative predictive value (NPV), with positive predictive values (PPVs) of 32% and 17%, respectively, for predicting viral culture positivity. A lower RT-PCR threshold (Ct ≤24) improved culture prediction (PPV = 39%; NPV = 100%). Vaccinated persons with mild Omicron infection are potentially transmissible up to day 7. RAT and RT-PCR might be useful tools for shortening the isolation period.
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Affiliation(s)
- Alessandra Luna-Muschi
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Saidy Vásconez Noguera
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Igor C Borges
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Anderson V De Paula
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Marina Farrel Côrtes
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Carolina Larocca
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Julia Ferreira Mari
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Lara Silva Pereira Guimarães
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Pablo Munoz Torres
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Nazareno Scaccia
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Lucy S Villas-Boas
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Almir Ribeiro da Silva
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Pâmela S Andrade
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Faculdade de Saúde Pública da Universidade de São Paulo, São Paulo, Brazil
| | - Juliana C Teixeira
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Victor Falcão de Oliveira
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Tania R Tozetto-Mendoza
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Maria Cássia Mendes-Correa
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Anna S Levin
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Ester C Sabino
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Silvia F Costa
- Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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Andrade PS, Lourenço FJ, Polizel A, Rigatto L, Mendes A, Rodrigues O. Productive performance and carcass traits of Nellore x Aberdeen Angus and Nellore x Red Angus heifers under tropical conditions. REV COLOMB CIENC PEC 2015. [DOI: 10.17533/udea.rccp.v28n3a5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Andrade PS, Westphal GA, Filho MC. The influence of different ventilatory modes on the intensity of pulse pressure variation. Crit Care 2007. [PMCID: PMC3301187 DOI: 10.1186/cc5847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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