The utility of chest computed tomography (CT) and RT-PCR screening of asymptomatic patients for SARS-CoV-2 prior to semiurgent or urgent hospital procedures
In total, 625 patients were screened for SARS-CoV-2 using a combination of phone questionnaires, RT-PCR and chest computed tomography. Of the 625 pati...
Evaluation of the RealStar® SARS-CoV-2 RT-PCR kit RUO performances and limit of detection
Assessment of the RealStar® SARS-CoV-2 RT-PCR Kit Research Use Only (Altona) compared with the WHO-PCr. Assay showed a slightly higher sensitivity wit...
SARS-CoV-2 seroprevalence worldwide: a systematic review and meta-analysis
SARS-CoV-2 has been arguably the most important public health concern worldwide in 2020. We used a random-effects model to estimate pooled seroprevale...
Anti-SARS-CoV-2 IgG antibody response among Indian COVID-19 patients using β-propiolactone-inactivated, whole virus-based indirect ELISA
IgG response was studied in relation to duration and severity of illness. The igG detection rate was higher in patients with severe disease. The BPL i...
Validation of a One-Step Reverse Transcription-Droplet Digital PCR (RT-ddPCR) Approach to Detect and Quantify SARS-CoV-2 RNA in Nasopharyngeal Swabs
Quantitative reverse transcription-PCR (RT-qPCR) is the preferred methodology for viral RNA detection. This study shows that RT-ddPCR allows the detec...
Challenges in use of saliva for detection of SARS CoV-2 RNA in symptomatic outpatients
In total, 35/124 (26.6%) samples were RT-PCR positive, with 33/35 positive by NPS. A third or more of pure saliva samples from symptomatic patients we...
Factors associated with viral clearance periods from patients with COVID-19: A retrospective observational cohort study
The study aims to identify the clinical and demographic factors influencing the time taken for viral clearance in patients with COVID-19 to determine...
Demographic, clinical, and epidemiologic characteristics of persons under investigation for Coronavirus Disease 2019-United States, January 17-February 29, 2020
This report describes the demographic, clinical, and epidemiologic characteristics of 544 U.S. persons under investigation (PUI) for complete SARS-CoV...
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