Publications by authors named "Marie Rapp"
Acute SARS-CoV-2 infections are not always diagnosed; hence an unknown proportion of all infections are not documented. SARS-CoV-2 can induce spike and nucleocapsid protein specific IgG antibodies, which can be detected in seroprevalence studies to identify a previous infection. However, with the introduction of vaccines containing the spike protein it is no longer possible to use spike-IgG as a marker of infection.
View Article and Find Full Text PDFWe performed 2 surveys during 2022 to estimate point prevalences of SARS-CoV-2 infection compared with overall seroprevalence in Sweden. Point prevalence was 1.4% in March and 1.
View Article and Find Full Text PDFBackground: In order to estimate the prevalence and understand the spread of SARS-CoV-2 in Sweden, the Public Health Agency of Sweden, with support from the Swedish Armed Forces, conducted a series of point prevalence surveys between March and December 2020.
Methods: Sampling material and instructions on how to perform self-sampling of the upper respiratory tract were delivered to the homes of the participants. Samples were analysed by real-time PCR, and the participants completed questionnaires regarding symptoms.
A national point seroprevalence study of SARS-CoV-2 was conducted in Sweden in April-May 2021. In total, 2860 individuals 3 to 90 years old from a probability-based web panel were included. Results showed that an estimated 32.
View Article and Find Full Text PDFArticle Synopsis
- Respiratory syncytial virus (RSV) is a leading cause of serious lower respiratory infections in young children and older adults, resulting in numerous hospitalizations and deaths, particularly in infants under 6 months.
- The lack of current RSV surveillance recommendations in the EU prompted a workshop among experts to establish a comprehensive national surveillance strategy aimed at improving data harmonization and comparison across Europe.
- The proposed surveillance strategy includes active community and hospital surveillance, passive laboratory monitoring, and the use of standardized PCR methods for RSV detection and genetic tracking, ultimately enhancing the understanding of RSV burden and guiding future vaccination efforts.