Visualization of the nasal (mid-turbinate) and throat (pharyngeal) viral kinetics via swabs. Shown for each participant as measured (twice daily at 12 h intervals) via (b) RT-qPCR and (c) quantitative culture by focus forming assay (FFA), with values shown. The lower limit of ...
eventually reaching a rate of more than 1500 tests per million people per day. The reported daily incidence and reported numbers of daily severe cases peaked around mid-April and dropped steadily up to the time of this manuscript’s initial submission (May 2020). Despite this knowledge, many ...
Under the grant conditions of the Bill & Melinda Gates Foundation, a Creative Commons Attribution 4.0 Generic License has already been assigned to the Author Accepted Manuscript version that might arise from this submission. The findings and conclusions contained within this manuscript are those of ...
Sul state was posteriorly performed with GISAID data by retrieval of 4706 sequences included in the following parameters: (i) Location: South America/Brazil/Rio Grande do Sul, (ii) Collection date between March 1, 2020 and May 31, 2022, and (iii) Submission date up to September 30, 2022...
the number of viruses per lineage per week was normalized against the epidemiological curve derived from COVID-19 case counts and visualized using R. To further minimize biases only sequences categorized in the GISAID submission as obtained using a ‘baseline surveillance’ sampling strategy were incl...
We examined the sensitivity of our estimates to different assumptions regarding the average duration of infectiousness by repeating the analysis of the South Africa and Botswana dataset with different fixed values of the becoming non-infectious rate: 52.1 per year and 26.1 per year, which translate ...
Only 420 of these were collected between mid-February and early-April 2021, showing important delays between sample collection and sequencing or sample storage for long periods before sequencing and submission (e. g., waiting for reagents and/or research investments). Therefore, a significant amount...
Data can be made available to share upon submission of a data request application to the investigators board via the corresponding author or S.S. (silvia.stringhini@hcuge.ch). Data needed for testing the code can be found athttps://github.com/HopkinsIDD/serocovpop-households(https://doi....
In this study, we analyze the impact of a set of epidemiological factors on the spread of SARS-CoV-2 in 30 European countries, which were applied from early 2020 up to mid-2022. We combine four data sets encompassing each country’s non-pharmaceutical interventions (NPIs, including 66 ...
Figure 2. Virus concentrations in Little Falls (small), Northfield (midsized), and Twin Cities (large). Table 1 provides some descriptions of the participating WWTPs, including the sampling period, the number of weeks where the WWTP was included in the study (because we had clinical case ...