Comparison of infectious SARS-CoV-2 from the nasopharynx ...

Dec 28, 2021 · asymptomatic score) (Figure 1C). Collectively, these observations suggest that SARS-CoV-2 vaccines may not alter the levels of replicating virus in the upper respiratory tract once viral infection establishes but may instead protect through accelerated clearance or enhanced neutralization of infectious viral particles [6].

  Observation

2021.12.14 Bolton H3N2Glycan - medrxiv.org

Dec 15, 2021 · 160 glycan in shaping the binding specificity of the new 2a2 H3N2 HAs for sialoside receptors. The types and prevalence of different sialo-linked receptors in the human respiratory tract is incompletely understood, and therefore it is difficult to interpret how changes in sialoside glycan specificity may affect viral fitness.

  Glycan

Omicron outbreak at a private gathering in the Faroe ...

Dec 22, 2021 · Title: Omicron outbreak at a private gathering in the Faroe Islands, infecting 21 of 33 triple-vaccinated healthcare workers Author: Administrator

It is made available under a CC-BY-NC-ND 4.0 International ...

Dec 02, 2021 · (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. 0 It is made available under a CC-BY-NC-ND 4.0 International license .

  International, Certified

Saliva swabs are the preferred sample for Omicron detection

Dec 22, 2021 · 10 3Green Point Diagnostic Virology Laboratory, National Health Laboratory Service, 11 Cape Town, South Africa 12 13 *Corresponding author 14 Email: diana.hardie@uct.ac.za 15 16 It is made available under a CC …

Omicron infection enhances neutralizing immunity against ...

Dec 27, 2021 · Pooled samples were quantified using Qubit 3.0 or 4.0 125 fluorometer (Invitrogen Inc.) using the Qubit dsDNA High Sensitivity assay according to manufacturer’s 126 instructions. The fragment sizes were analyzed using TapeStation 4200 (Invitrogen). The pooled 127 libraries were further normalized to 4nM concentration and 25 μL of each ...

  Qubits, Invitrogen

Analytical sensitivity of seven SARS-CoV-2 antigen ...

Dec 18, 2021 · 35 potential impact on diagnostic performance. SARS-CoV-2 antigen-detecting rapid diagnostic 36 tests (Ag-RDT) offer quick, cheap and laboratory-independent results at the point of care.1 37 Although sensitivity is lower compared to RT-PCR, they enable reliable detection of high viral

  Diagnostics, Rapid, Rapid diagnostic

Comparison of outcomes from COVID infection in pediatric ...

Dec 30, 2021 · CoV-2 infection. Based on CDC data, Delta was the predominant variant at that time (98.6-99.1%)1; (c) the Delta-2 cohort (n = 77,692) – patients who had their first SARS-CoV-2 infections between 11/16/2021–11/30/2021, immediately before the Omicron variant was detected in the US, and had no prior SARS-CoV-2 infection.

  Infections

Protection afforded by prior infection against SARS-CoV-2 ...

Jan 05, 2022 · exact matched in a ratio of one-to-five by sex, 10-year age group, nationality, and calendar week of the PCR test (Figure 1 and Table 1). Infection with Alpha, Beta, or Delta variants was ascertained using real-time reverse-transcription PCR (RT-qPCR) genotyping of the positive clinical samples 11,12(Section S1).

  Ratios, Infections

Infectious viral load in unvaccinated and vaccinated ...

Jan 10, 2022 · 67 Although the process of human-to-human transmission is complex, VL can serve as a proxy, with 68 higher VL posing a greater risk for onward transmission. In several epidemiological studies, higher viral 69 load expressed as viral RNA was associated with an increased secondary transmission in household 70 settings(3, 4).

  Process

New Formulation of COMIRNATY Receives Positive Opinion ...

Oct 18, 2021 · COMIRNATY® (COVID-19 vaccine, mRNA). The new formulation does not require dilution of the concentrate and will be available in a 10-vial (60 dose) pack size, therefore, helping ensure simplified handling of the vaccine. All other aspects, including the antigen and the lipids of the vaccine, remain unchanged.

  Vaccine