Introduction to Sars Cov 2 Serology
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Sars Cov 2 Serology sentence examples within receptor binding domain
Among 758 individuals evaluated for anti-SARS-CoV-2 serology in the province of Tucumán, Argentina, we found a weak correlation between antibodies elicited against the RBD, the receptor-binding domain of the Spike protein, and the nucleocapsid (N) antigens of this virus.
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This study compared the performance of a multiplex salivary SARS-CoV-2 IgG assay targeting antibodies to nucleocapsid (N), receptor binding domain (RBD) and spike (S) antigens to three commercially-available SARS-CoV-2 serology enzyme immunoassays (EIAs) (Ortho Vitros, Euroimmun, and BioRad) and nAb.
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Sars Cov 2 Serology sentence examples within age sex profession
Complete SARS-CoV-2 serology was available for n=12,928 employees and seroprevalences were analyzed by age, sex, profession, patient contact, and hospital department.
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Complete SARS-CoV-2 serology was available for n=12,928 employees and seroprevalences were analyzed by age, sex, profession, patient contact, and hospital department.
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Methods: The HCWs were tested for SARS-CoV-2 serology (IgG+IgM) using chemiluminescence immunoassay between June 22 and July 24, 2020.
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Methods Patients with MS with coronavirus disease 2019 (COVID-19) and available anti–SARS-CoV-2 serology were included.
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We assessed both neutralizing antibody (Nab) activity persistence and SARS-CoV-2 serology in serum samples of mild and asymptomatic patients nine months post symptom onset (PSO) in a primary care context among immunocompetent adults.
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Conclusions In pediatric populations, false-positive SARS-CoV-2 serology may be more common than assay and prevalence parameters would predict, and further studies are needed to establish the performance of SARS-CoV-2 serology in children.
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Using SARS-CoV-2 serology and IFN-{gamma} ELISPOT, we found evidence of a previous SARS-CoV-2 infection in 50% (15/30) of patients, with objective evidence of lack or waning of immune response in two.
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Fingerstick DBS and plasma samples are easy and inexpensive to collect and, along with the use of rapid point-of-care testing platforms, will expand access to SARS-CoV-2 serology testing, particularly in resource-limited areas.
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Ten days after the admission, SARS-CoV-2 serology returned positive, thus supporting a SARS-CoV-2–related encephalitis.
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Methods: Four months after the peak of the first wave, we offered all the staff at the MSF Aden Trauma Centre PCR if symptomatic, and a baseline SARS-CoV-2 serology screening followed by follow-up screenings.
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SARS-CoV-2 serology was systematically tested.
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SARS-CoV-2 serology is useful to identify past COVID-19 cases, and it is not useful for acute infection.
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To date, existing SARS-CoV-2 serology tests have limited utility due to insufficient reliable detection of antibody levels lower than what is typically present after several days of symptoms.
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As the positive anti-SARS-CoV-2 serology poorly correlated with the confirmatory RT-PCR and the fact that mainly the detection of the virus by PCR correlates with the patient’s infectiousness we suggest to rather perform a SARS-CoV-2-PCR-based admission screening in perinatal centers to prevent the spread of the disease.
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Of those tested, 14·8% (39/264) children had a positive SARS-CoV-2 RT-PCR, and 63·6% (75/118) were positive for SARS-CoV-2 serology.
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OUTCOMES SARS-CoV-2 serology analyses in the cord and maternal blood at delivery and longitudinally in infant blood between birth and 28 weeks of life.
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Among 758 individuals evaluated for anti-SARS-CoV-2 serology in the province of Tucumán, Argentina, we found a weak correlation between antibodies elicited against the RBD, the receptor-binding domain of the Spike protein, and the nucleocapsid (N) antigens of this virus.
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Introduction
SARS-CoV-2 serology tests could play a crucial role in estimating the prevalence of COVID-19.
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Bio-rad, Bio-Plex methodology was used to detect anti-IFNγ Ab, titration, IFNγ recovery assay and SARS-CoV-2 serology.
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SARS-CoV-2 RT-PCR was negative and SARS-CoV-2 serology showed negative IgMIgG-IgA antibodies to nucleocapsid protein and positive IgG antibodies to spike protein index: 32.
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SARS-CoV-2 serology testing was performed on participants, and a questionnaire was applied.
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5) Clinical surveillance 18 (16) Time between first vaccine injection and SARS-CoV-2 serology, days, median (IQR) 27 (26-28).
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Evaluation of the performance of these tests using “post-hoc” SARS-CoV-2 serology as a surrogate marker of infection.
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This study compared the performance of a multiplex salivary SARS-CoV-2 IgG assay targeting antibodies to nucleocapsid (N), receptor binding domain (RBD) and spike (S) antigens to three commercially-available SARS-CoV-2 serology enzyme immunoassays (EIAs) (Ortho Vitros, Euroimmun, and BioRad) and nAb.
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In addition, in the period 4th May to 3rd June 2020 SARS-CoV-2 serology testing, using the Roche SARS-CoV-2 IgG assay (Elecsys®), was performed in 104/140 (74.
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In addition, co-infection followed by cross-reactivity between antibodies against DENV and SARS-CoV-2 serology tests has been recorded in reports.
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Laboratory exams, including inflammation, coagulation markers and Sars-CoV-2 serology, were requested.
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Complete SARS-CoV-2 serology was available for n=12,928 employees and seroprevalences were analyzed by age, sex, profession, patient contact, and hospital department.
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This study assesses the diagnostic value of SARS-CoV-2 serology for patients with distinct CT features but negative PCR.
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One-hundred and fifty long-term samples from 75 COVID-19 patients were analyzed with a surrogate virus neutralization test (sVNT) and compared to six different SARS-CoV-2 serology assays.
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Design Observational cohort study of healthcare workers, including SARS-CoV-2 serology testing and participant questionnaires.
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Objectives SARS-CoV-2 serology presents an important role in several aspects of COVID-19 pandemic.
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As more individuals are vaccinated, the clinical performance and utility of SARS-CoV-2 serology platforms needs to be evaluated.
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This study suggests that an initial diagnostic strategy using the Elecsys Anti-SARS-CoV-2 serology test in symptomatic unvaccinated patients could help to rule out an acute SARS-CoV2 infection and potentially lead to appropriately tailored infection control measures or rational guidance for further testing with a potential cost reduction and increased availability.
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This study compared the performance of a laboratory-developed multiplex salivary SARS-CoV-2 IgG assay targeting antibodies to nucleocapsid (N), receptor binding domain (RBD) and spike (S) antigens to three commercially-available SARS-CoV-2 serology enzyme immunoassays (EIAs) (Ortho Vitros, Euroimmun, and BioRad) and nAb.
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To critically evaluate 2 commercially available SARS-CoV-2 serology tests.
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Here, we report a case of pediatric type 2 diabetes (T2D) with diabetic ketoacidosis (DKA) and severe multi-organ dysfunction with SARS-CoV-2 serology positivity.
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SARS-CoV-2 serology was performed at month 0 (M0), M1, and M3 and RT-PCR in case of symptoms.
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The time-related decrease in IgG (S) in subjects without COVID-19 history, SARS-COV-2 serology would be negative in HCWs approximately 220 days and in residents 180 days after vaccination.
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As more individuals are vaccinated, the clinical performance and utility of SARS-CoV-2 serology platforms needs to be evaluated.
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Outcomes SARS-CoV-2 serology analyses in the cord and maternal blood at delivery and longitudinally in infant blood between birth and 28 weeks of life.
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Bayesian statistical modelling was used to retrospectively determine the sensitivity of RT-PCR using SARS-CoV-2 serology in 644 COVID-19-suspected patients with varying degrees of disease severity and duration.
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One month later, anti-SARS-COV-2 serology demonstrated presence of IgG anti S1 and S2 proteins (titer of 60 AU/mL with positive threshold above 15).
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This highlights the need for further standardization of SARS-CoV-2 serology.
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Cases were included if they had SARS-CoV-2 infection or multi-system inflammatory syndrome in children (MIS-C) with molecular detection of SARS-CoV-2 or positive SARS-CoV-2 serology.
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523 health workers were recruited to be tested for SARS-CoV-2 serology screening (All Test®) and they answered a questionnaire with demographic, epidemiological and clinical information and previous exposure to COVID-19.
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Discussion A large majority of the Italian dentists appears to be aware of the need for changes in their dental practices by planning specific sterilization processes between appointments, testing patients for SARS-CoV-2 serology, asking patients not to be accompanied, and reducing the number of visits per day.
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Fingerstick DBS and plasma samples are easy and inexpensive to collect and, along with the use of rapid point-of-care testing platforms, will expand access to SARS-CoV-2 serology testing, particularly in resource-limited areas.
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SARS-CoV-2 serology was taken within the first month of diabetes.
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Main outcome measures: SARS-CoV-2 serology results; clustering of seropositive children within classes; reported symptoms.
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SARS-CoV-2 serology tests used in clinical diagnostic should not accurately evaluate total levels the antibodies but also closely correlate with neutralizing antibodies titers.
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PARTICIPANTS
Employees and medical staff members elected to participate in SARS-CoV-2 serology testing offered to all HCWs as part of a quality initiative and completed a survey on exposure to COVID-19 and use of personal protective equipment.
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Methods We conducted a cross-sectional analysis of baseline data from the Northwestern HCW SARS-CoV-2 Serology Cohort Study.
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Despite the critical functions in virus infection and contribution to the pattern of immunodominance in COVID-19, exploitation of the most abundant membrane (M) protein in the SARS-CoV-2 serology tests is minimal.
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Little is known on dynamics of SARS-CoV-2 serology in African settings.
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Using SARS-CoV-2 serology testing, we assessed the proportion of people in Alberta, Canada (population 4.
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Cycle threshold (Ct) values of the two tests (average Ct <30), SARS-CoV-2 serology results, clinical assessment, and COVID-19 history were used to determine patient infectiousness.
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This comes after the UK Biobank SARS-CoV-2 Serology study found that around one in four people with evidence of past covid-19 infection were completely asymptomatic, while 40% did not have one of the three classic symptoms used to determine whether someone needs testing—fever, persistent dry cough, or loss of sense of taste or smell.
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Using SARS-CoV-2 serology and IFN-γ ELISPOT, we found evidence of a previous SARS-CoV-2 infection in 50% (15/30) of patients, with evidence of a lack of immune response, or a waning immune response, in two patients.
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The UK Biobank SARS-CoV-2 Serology study analysed monthly blood samples of nearly 19 000people from27May to 4December 2020.
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SARS-CoV-2 serology was performed at month 0 (M0), M1, and M3 and RT-PCR in case of symptoms.
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This highlights the need for further standardization of SARS-CoV-2 serology.
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Main outcome measure Proportion of healthcare workers with positive SARS-CoV-2 serology.
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We also provide examples for a recently published SARS-CoV-2 serology test and discuss how measurement uncertainty (e.
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SARS-CoV-2 serology was performed at month 0 (M0), M1, and M3 and RT-PCR in case of symptoms.
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To this aim, we used a survey approach coupled with systematic investigation of SARS-CoV-2 serology in a cohort of 1390 KTRs.
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OBJECTIVE
- To describe the development and initial results of the College of American Pathologists (CAP) SARS-CoV-2 Serology Survey.
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Methods Cross-sectional phone survey from April 9, 2020, to July 2, 2020, during which patients with autoimmune diseases followed at the National Reference Center for Rare Autoimmune diseases of Strasbourg were systematically contacted by phone and sent a prescription for a SARS-CoV-2 serology.
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523 health workers were recruited to be tested for SARS-CoV-2 serology screening (All Test®) and they answered a questionnaire with demographic, epidemiological and clinical information and previous exposure to COVID-19.
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DBS use for SARS-CoV-2 serology, though feasible, is insensitive relative to immunoassays on plasma.
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Here, we characterize and compare in an ambidirectional cohort study SARS-CoV-2 serology among Norwegian school employees and retail employees at baseline following the first epidemiological wave, and at follow-up after a second wave.
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Complete SARS-CoV-2 serology was available for n=12,928 employees and seroprevalences were analyzed by age, sex, profession, patient contact, and hospital department.
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Complete SARS-CoV-2 serology was available for n=12,928 employees and seroprevalences were analyzed by age, sex, profession, patient contact, and hospital department.
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