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  1. Article ; Online: Reduced Seasonal Coronavirus Antibody Responses in Children Following COVID-19 Mitigation Measures, The Netherlands.

    Sikkema, Reina S / Bruin, Erwin de / Ramakers, Christian / Bentvelsen, Robbert / Li, Wentao / Bosch, Berend-Jan / Westerhuis, Brenda / Haagmans, Bart / Koopmans, Marion P G / Fraaij, Pieter L A

    Viruses

    2023  Volume 15, Issue 1

    Abstract: SARS-CoV-2 prevention and control measures did not only impact SARS-CoV-2 circulation, but also the timing and prevalence of other seasonal respiratory viruses. Especially in children, information on exposure and infections to seasonal coronaviruses as ... ...

    Abstract SARS-CoV-2 prevention and control measures did not only impact SARS-CoV-2 circulation, but also the timing and prevalence of other seasonal respiratory viruses. Especially in children, information on exposure and infections to seasonal coronaviruses as well as SARS-CoV-2 in the first year of the pandemic is largely lacking. Therefore, we set up a one-year serological survey in a large tertiary hospital in the Netherlands. We show that seasonal coronavirus seroprevalence significantly decreased in 2021 in children less than one year, most likely due to COVID-19 control measures. The SARS-CoV-2 seroprevalence in children and adolescents increased from 0.4% to 11.3%, the highest in adolescents. This implies higher exposure rates in adolescents as compared to the general population (>18 years old). It is clear that there have been significant changes in the circulation and subsequent immunity against most respiratory pathogens as a result of the mitigation measures. The implications on shorter as well as longer term are still largely unknown, but the impact of the SARS-CoV-2 pandemic and subsequent control measures will continue to affect the dynamics of other pathogens.
    MeSH term(s) Adolescent ; Humans ; Child ; COVID-19/epidemiology ; COVID-19/prevention & control ; Netherlands/epidemiology ; Antibody Formation ; Seasons ; Seroepidemiologic Studies ; SARS-CoV-2 ; Antibodies, Viral
    Chemical Substances Antibodies, Viral
    Language English
    Publishing date 2023-01-12
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v15010212
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Exploring novel sero-epidemiological tools-Effect of different storage conditions on longitudinal stability of microarray slides comprising influenza A-, measles- and Streptococcus pneumoniae antigens.

    Freidl, Gudrun S / Bruin, Erwin de / Schipper, Maarten / Koopmans, Marion

    Journal of virological methods

    2017  Volume 245, Page(s) 53–60

    Abstract: In this study we evaluated the long-term stability of a microarray-based serological screening platform, containing antigens of influenza A, measles and Streptococcus pneumoniae, as part of a preparedness research program aiming to develop assays for ... ...

    Abstract In this study we evaluated the long-term stability of a microarray-based serological screening platform, containing antigens of influenza A, measles and Streptococcus pneumoniae, as part of a preparedness research program aiming to develop assays for syndromic disease detection. Spotted microarray slides were kept at four different storage regimes with varying temperature and humidity conditions. We showed that under the standard storage condition in a temperature-controlled (21°C) and desiccated environment (0% relative humidity), microarray slides remained stable for at least 22 months without loss of antigen quality, whereas the other three conditions (37°C, desiccated; Room temperature, non-desiccated; Frozen, desiccated) produced acceptable results for some antigens (influenza A, S.pneumoniae), but not for others (measles). We conclude that these arrays for multiplex antibody testing can be prepared and stored for prolonged periods of time, which aids laboratory-preparedness and facilitates sero-epidemiological studies.
    Language English
    Publishing date 2017-07
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 8013-5
    ISSN 1879-0984 ; 0166-0934
    ISSN (online) 1879-0984
    ISSN 0166-0934
    DOI 10.1016/j.jviromet.2017.03.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Zika Virus Antibody Titers Three Years after Confirmed Infection

    Langerak, Thomas / Kasbergen, Louella M. R. / Chandler, Felicity / Brinkman, Tom / Faerber, Zéfia / Phalai, Kajal / Ulbert, Sebastian / Rockstroh, Alexandra / Bruin, Erwin de / Koopmans, Marion P. G. / Rockx, Barry / van Gorp, Eric C. M. / Vreden, Stephen

    Viruses. 2021 July 12, v. 13, no. 7

    2021  

    Abstract: Background: In 2015–2016, a large Zika virus (ZIKV) outbreak occurred in the Americas. Although the exact ZIKV antibody kinetics after infection are unknown, recent evidence indicates the rapid waning of ZIKV antibodies in humans. Therefore, we aimed to ... ...

    Abstract Background: In 2015–2016, a large Zika virus (ZIKV) outbreak occurred in the Americas. Although the exact ZIKV antibody kinetics after infection are unknown, recent evidence indicates the rapid waning of ZIKV antibodies in humans. Therefore, we aimed to determine the levels of ZIKV antibodies more than three years after a ZIKV infection. Methods: We performed ZIKV virus neutralization tests (VNT) and a commercial ZIKV non-structural protein 1 (NS1) IgG ELISA in a cohort of 49 participants from Suriname who had a polymerase-chain-reaction-confirmed ZIKV infection more than three years ago. Furthermore, we determined the presence of antibodies against multiple dengue virus (DENV) antigens. Results: The ZIKV seroprevalence in this cohort, assessed with ZIKV VNT and ZIKV NS1 IgG ELISA, was 59.2% and 63.3%, respectively. There was, however, no correlation between these two tests. Furthermore, we did not find evidence of a potential negative influence of DENV immunity on ZIKV antibody titers. Conclusions: ZIKV seroprevalence, assessed with two commonly used serological tests, was lower than expected in this cohort of participants who had a confirmed previous ZIKV infection. This can have implications for future ZIKV seroprevalence studies and possibly for the duration of immunological protection after a ZIKV infection.
    Keywords Dengue virus ; Zika virus ; antibodies ; immunity ; neutralization tests ; seroprevalence ; viral nonstructural proteins ; Suriname
    Language English
    Dates of publication 2021-0712
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2516098-9
    ISSN 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v13071345
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Zika Virus Antibody Titers Three Years after Confirmed Infection.

    Langerak, Thomas / Kasbergen, Louella M R / Chandler, Felicity / Brinkman, Tom / Faerber, Zéfia / Phalai, Kajal / Ulbert, Sebastian / Rockstroh, Alexandra / Bruin, Erwin de / Koopmans, Marion P G / Rockx, Barry / van Gorp, Eric C M / Vreden, Stephen

    Viruses

    2021  Volume 13, Issue 7

    Abstract: Background: In 2015-2016, a large Zika virus (ZIKV) outbreak occurred in the Americas. Although the exact ZIKV antibody kinetics after infection are unknown, recent evidence indicates the rapid waning of ZIKV antibodies in humans. Therefore, we aimed to ...

    Abstract Background: In 2015-2016, a large Zika virus (ZIKV) outbreak occurred in the Americas. Although the exact ZIKV antibody kinetics after infection are unknown, recent evidence indicates the rapid waning of ZIKV antibodies in humans. Therefore, we aimed to determine the levels of ZIKV antibodies more than three years after a ZIKV infection.
    Methods: We performed ZIKV virus neutralization tests (VNT) and a commercial ZIKV non-structural protein 1 (NS1) IgG ELISA in a cohort of 49 participants from Suriname who had a polymerase-chain-reaction-confirmed ZIKV infection more than three years ago. Furthermore, we determined the presence of antibodies against multiple dengue virus (DENV) antigens.
    Results: The ZIKV seroprevalence in this cohort, assessed with ZIKV VNT and ZIKV NS1 IgG ELISA, was 59.2% and 63.3%, respectively. There was, however, no correlation between these two tests. Furthermore, we did not find evidence of a potential negative influence of DENV immunity on ZIKV antibody titers.
    Conclusions: ZIKV seroprevalence, assessed with two commonly used serological tests, was lower than expected in this cohort of participants who had a confirmed previous ZIKV infection. This can have implications for future ZIKV seroprevalence studies and possibly for the duration of immunological protection after a ZIKV infection.
    MeSH term(s) Adult ; Antibodies, Neutralizing/analysis ; Antibodies, Neutralizing/immunology ; Antibodies, Viral/analysis ; Antibodies, Viral/immunology ; Cohort Studies ; Cross Reactions/immunology ; Dengue/virology ; Dengue Virus/immunology ; Enzyme-Linked Immunosorbent Assay/methods ; Female ; Humans ; Immunoglobulin G/immunology ; Immunoglobulin M/immunology ; Male ; Middle Aged ; Neutralization Tests/methods ; Seroepidemiologic Studies ; Serologic Tests/methods ; Suriname ; Zika Virus/immunology ; Zika Virus/pathogenicity ; Zika Virus Infection/immunology ; Zika Virus Infection/metabolism ; Zika Virus Infection/virology
    Chemical Substances Antibodies, Neutralizing ; Antibodies, Viral ; Immunoglobulin G ; Immunoglobulin M
    Language English
    Publishing date 2021-07-12
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v13071345
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Zika virus antibody titers three years after confirmed infection

    Langerak, Thomas / Kasbergen, Louella M.R. / Chandler, Felicity / Brinkman, Tom / Faerber, Zéfia / Phalai, Kajal / Ulbert, Sebastian / Rockstroh, Alexandra / Bruin, Erwin de / Koopmans, Marion P.G. / Rockx, Barry / Gorp, Eric C.M. van / Vreden, Stephen

    2021  

    Abstract: Art. 1345, 10 S. ... Background: In 2015-2016, a large Zika virus (ZIKV) outbreak occurred in the Americas. Although the exact ZIKV antibody kinetics after infection are unknown, recent evidence indicates the rapid waning of ZIKV antibodies in humans. ... ...

    Abstract Art. 1345, 10 S.

    Background: In 2015-2016, a large Zika virus (ZIKV) outbreak occurred in the Americas. Although the exact ZIKV antibody kinetics after infection are unknown, recent evidence indicates the rapid waning of ZIKV antibodies in humans. Therefore, we aimed to determine the levels of ZIKV antibodies more than three years after a ZIKV infection. Methods: We performed ZIKV virus neutralization tests (VNT) and a commercial ZIKV non-structural protein 1 (NS1) IgG ELISA in a cohort of 49 participants from Suriname who had a polymerase-chain-reaction-confirmed ZIKV infection more than three years ago. Furthermore, we determined the presence of antibodies against multiple dengue virus (DENV) antigens. Results: The ZIKV seroprevalence in this cohort, assessed with ZIKV VNT and ZIKV NS1 IgG ELISA, was 59.2% and 63.3%, respectively. There was, however, no correlation between these two tests. Furthermore, we did not find evidence of a potential negative influence of DENV immunity on ZIKV antibody titers. Conclusions: ZIKV seroprevalence, assessed with two commonly used serological tests, was lower than expected in this cohort of participants who had a confirmed previous ZIKV infection. This can have implications for future ZIKV seroprevalence studies and possibly for the duration of immunological protection after a ZIKV infection.

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    Nr.7
    Keywords Zika virus ; Serologie ; cross-reactivity ; Dengue virus ; waning immunity ; 610 ; 579 ; 620
    Subject code 616
    Language English
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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