Publications by authors named "Laura Verdurme"
Article Synopsis
- - From April 2023 to May 2024, France saw a significant increase in parvovirus B19 (B19V) infections, with IgM-positive cases four times higher than in the 2019 epidemic.
- - Clinical data supported the rise, showing adverse health effects, especially in children, while adults mostly showed increased lab-confirmed cases.
- - It's crucial for physicians and policymakers to be alerted so they can improve prevention, diagnosis, and management for vulnerable patients.
Article Synopsis
- The study compares a commercial MucorGenius qPCR assay to an in-house qPCR assay designed to diagnose Mucorales infections in serum samples from patients with mucormycosis.
- For analytical sensitivity, only 52% of serum samples were detected by either assay, with the in-house method showing better results, particularly for frequently encountered species.
- The MucorGenius assay failed to detect certain crucial species while detecting more non-targeted species, indicating it had lower overall analytical sensitivity compared to the in-house assay.
We analyzed 324,734 SARS-CoV-2 variant screening tests from France enriched with 16,973 whole-genome sequences sampled during September 1, 2021-February 28, 2022. Results showed the estimated growth advantage of the Omicron variant over the Delta variant to be 105% (95% CI 96%-114%) and that of the BA.2 lineage over the BA.
View Article and Find Full Text PDFSARS-CoV-2 variants raise concern regarding the mortality caused by COVID-19 epidemics. We analyse 88,375 cycle amplification (Ct) values from variant-specific RT-PCR tests performed between January 26 and March 13, 2021. We estimate that on March 12, nearly 85% of the infections were caused by the Alpha variant and that its transmission advantage over wild type strains was between 38 and 44%.
View Article and Find Full Text PDFWe analysed 9,030 variant-specific RT-PCR tests performed on SARS-CoV-2-positive samples collected in France between 31 May and 21 June 2021. This analysis revealed rapid growth of the Delta variant in three of the 13 metropolitan French regions and estimated a +79% (95% confidence interval: 52-110%) transmission advantage compared with the Alpha variant. The next weeks will prove decisive and the magnitude of the estimated transmission advantages of the Delta variant could represent a major challenge for public health authorities.
View Article and Find Full Text PDFTo assess SARS-CoV-2 variants spread, we analysed 36,590 variant-specific reverse-transcription-PCR tests performed on samples from 12 April-7 May 2021 in France. In this period, contrarily to January-March 2021, variants of concern (VOC) β (B.1.
View Article and Find Full Text PDFVariants of severe acute respiratory syndrome coronavirus 2 raise concerns regarding the control of coronavirus disease epidemics. We analyzed 40,000 specific reverse transcription PCR tests performed on positive samples during January 26-February 16, 2021, in France. We found high transmission advantage of variants and more advanced spread than anticipated.
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