scholarly journals Computed Tomographic Imaging of 3 Patients With Coronavirus Disease 2019 Pneumonia With Negative Virus Real-time Reverse-Transcription Polymerase Chain Reaction Test

2020 ◽  
Vol 71 (15) ◽  
pp. 850-852 ◽  
Author(s):  
Junqing Xu ◽  
Ruodai Wu ◽  
Hua Huang ◽  
Weidong Zheng ◽  
Xinling Ren ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Real Time ◽  
Reverse Transcription ◽  
Polymerase Chain Reaction Test ◽  
Chain Reaction ◽  
Computed Tomographic ◽  
Negative Results ◽  
Reaction Test ◽  
Polymerase Chain ◽  
Chain Reaction Test

Abstract We reported computed tomographic (CT) imaging findings of 3 patients with coronavirus disease 2019 (COVID-19) pneumonia with initially negative results before CT examination and finally confirmed positive for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by real-time reverse-transcription polymerase chain reaction assay.

Real-time polymerase chain reaction test to discriminate between contamination and intraocular infection after cataract surgery

2011 ◽  
Vol 37 (7) ◽  
pp. 1244-1250 ◽  
Author(s):  
Gustavo Barreto Melo ◽  
Paulo José Martins Bispo ◽  
Antonio Carlos Campos Pignatari ◽  
Ana Luisa Höfling-Lima
Keyword(s):  
Polymerase Chain Reaction ◽  
Cataract Surgery ◽  
Real Time ◽  
Polymerase Chain Reaction Test ◽  
Chain Reaction ◽  
Reaction Test ◽  
Polymerase Chain ◽  
Chain Reaction Test

scholarly journals Occurrence and Timing of Subsequent Severe Acute Respiratory Syndrome Coronavirus 2 Reverse-transcription Polymerase Chain Reaction Positivity Among Initially Negative Patients

2020 ◽  
Author(s):  
Dustin R Long ◽  
Saurabh Gombar ◽  
Catherine A Hogan ◽  
Alexander L Greninger ◽  
Vikas O’Reilly-Shah ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Severe Acute Respiratory Syndrome ◽  
Reverse Transcription ◽  
Polymerase Chain Reaction Test ◽  
Nasopharyngeal Swab ◽  
Chain Reaction ◽  
Reaction Test ◽  
Polymerase Chain ◽  
Using Data ◽  
Chain Reaction Test

Abstract Using data for 20 912 patients from 2 large academic health systems, we analyzed the frequency of severe acute respiratory syndrome coronavirus 2 reverse-transcription polymerase chain reaction test discordance among individuals initially testing negative by nasopharyngeal swab who were retested on clinical grounds within 7 days. The frequency of subsequent positivity within this window was 3.5% and was similar across institutions.

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