Home/Tag: Testing
This observational study found that half of the patient with negative IgM and RT-qPCR-positive SARS-CoV-2 had severe COVID-19 disease.  IgM-based gold immunochromatographic assay (GICA) is the test used within this study, to investigate its utility Severe cases were defined as Read More
This study compared 4 commercial ELISAs and 2 rapid tests for detecting antibodies in individuals with PCR-confirmed SARS-CoV-2 infection and found that while test sensitivities were low within the first 5 days, by >10 days, all evaluated tests provided positive Read More
This small study collected samples from 2 quarantine rooms, where 2 pre-symptomatic SARS-CoV2 positive individuals had stayed, and found SARS-CoV-2 on multiple surfaces. 11 samples were taken in each room, 22 samples in total. Swabs were taken from the following Read More
This research letter reports results from the first phase of a COVID-19 antibody study in Los Angeles County. The authors tested for SARS-CoV-2–specific antibodies using a lateral flow immunoassay test among a random sample of Los Angeles County, CA residents Read More
This study found that 4.34% of individuals within Los Angeles County, CA had positive antibodies for SARS-COV-2. This study performed serologic tests in a community sample to estimate cumulative incidence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection Of Read More
This study found that SARS-CoV-2 testing results via nasopharyngeal swab and saliva sample were comparable, and that saliva is an acceptable alternative source for detecting SARS-CoV-2 nucleic acid. Study used Cepheid Xpert Xpress SARS-CoV-2 (Sunnyvale, CA) PCR test for both Read More
Published on :  | By Erika Cheng

Review: Drive-through testing in COVID-19

This article describes a novel drive-through coronavirus testing of possible cases in the UK. The testing site was created in response to the ‘contain’ phase of the UK response, when innovation within healthcare was needed to detect and isolate cases Read More
This study found that 21 days after a single index SARS-CoV-2 patient at Riley Hospital for Children’s dialysis center, 44% of health care workers had positive SARS-CoV-2 antibodies and 23% of patients had antibodies.  One week before this study began Read More
Published on :  | By Megan McHenry

Review: Detection of SARS-CoV-2 in placental and fetal membrane samples

This is a brief case series study on the placental/membrane SARS-CoV2 RNA PCR swab results of 11 symptomatic mothers with confirmed COVID-19 infection in pregnancy; only 3 were positive for SARS-CoV-2. All charts pregnant women diagnosed with COVID-19 who gave Read More
Published on :  | By Megan McHenry

Review: Prolonged persistence of SARS-CoV-2 RNA in body fluids

Using an accelerated failure time-based modeling study, estimated median time virus RNA detection ranged from 15.6-24.5 days in mild COVID-19 cases to 30.9-33.9 days in severe cases.  This was a prospective analysis of 49 coronavirus disease cases in Guangdong, China Read More

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