idw – Informationsdienst Wissenschaft

Nachrichten, Termine, Experten

Grafik: idw-Logo
Thema Corona

Science Video Project
idw-Abo

idw-News App:

AppStore

Google Play Store



Magazin
Share on: 
03/31/2022 13:40

German and Austrian deer thus far spared SARS-CoV-2 infections, unlike in North America

Dipl. Soz. Steven Seet Wissenschaftskommunikation
Leibniz-Institut für Zoo- und Wildtierforschung (IZW) im Forschungsverbund Berlin e.V.

    In North America, SARS-CoV-2 has spread from humans to white-tailed deer. The deer are now considered SARS-CoV-2 reservoirs and may even spill virus back to humans. A science team headed by the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) and the Charité have now shown that in Germany and Austria this has not happened as all deer tested were negative for SARS-CoV-2 antibodies. The research is reported in the journal “Microorganisms” in a special issue on Viruses of Wild Mammals.

    SARS-CoV-2 (Severe acute respiratory syndrome coronavirus type 2) is a virus identified in 2020 as the causative agent of COVID-19 disease. White-tailed deer in North America have been shown to be infected with human derived SARS-CoV-2 variants at very high prevalence in many cases. There is preliminary evidence that SARS-CoV-2 can then spill back to humans from deer. This is a cause of concern as novel variants could evolve in their new deer host and eventually spill back to humans, with unforeseeable consequences. While white-tailed deer are a North American species, deer occur worldwide and in central Europe like North America, are heavily hunted and managed.

    A team of scientists from the German Leibniz-IZW, the Institute of Virology of the Charité, the Austrian Research Institute of Wildlife Ecology (FIWI) and the German Federal Institute for Risk Assessment (BfR) examined sera from 433 roe, red and fallow deer, both pre-pandemic and pandemic collected for SARS-CoV-2 antibodies using an assay that previously confirmed antibody titres in North American deer. None of the deer from Germany or Austria were positive. The team also compared the ACE2 gene, the cellular receptor of hosts for the SARS-CoV-2 virus, among the different deer species. With the exception of one change which might potentially make red deer somewhat more resistant to infection, no changes were found in the receptor in the European species that could account for the drastic difference in results between central European and North American deer exposure.

    A likely explanation for the differences in exposure are how deer are distributed and managed in North America and central Europe. In North America, deer are often peri-urban and urban with high potential levels of contact with humans and human waste. Deer are managed principally by the federal government. In Germany and Austria, deer are generally not peri-urban or present in urban settings and an allocation of hunting licenses for a specific area (the “Revier”) is predominant where deer in a specific area are locally managed. The Revier structure likely prevents human-deer contact and also hinders the spread of pathogens among deer populations.

    “Every effort should be made to maintain barriers to human-deer contact in central Europe to prevent the establishment of deer as a SARS-CoV-2 reservoir,” says Prof Alex D Greenwood, Head of the Department of Wildlife Diseases at the Leibniz IZW.


    Contact for scientific information:

    Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW)
    in the Forschungsverbund Berlin e.V.
    Alfred-Kowalke-Straße 17
    10315 Berlin
    Germany

    Professor Alex D Greenwood
    Head of Department of Wildlife Diseases
    Leibniz Institute for Zoo and Wildlife Research
    greenwood@izw-berlin.de

    Charité – Universitätsmedizin Berlin
    Charitéplatz 1
    10117 Berlin
    Germany

    Professor Jan Felix Drexler
    Charité – Universitätsmedizin Berlin
    felix.drexler@charite.de


    Original publication:

    Moreira-Soto A, Walzer C, Czirják GÁ, Richter MH, Marino SF, Posautz A, Yebra Rodo P De, McEwen GK, Drexler JF, Greenwood AD (2022): Serological evidence that SARS-CoV-2 has not emerged in deer in Germany or Austria during the COVID-19 pandemic. MICROORGANISMS 10, 748; https://doi.org/10.3390/microorganisms10040748.


    Images

    Deer
    Deer
    Dirk Martins - unsplash
    Dirk Martins - unsplash


    Criteria of this press release:
    Business and commerce, Journalists, Scientists and scholars, Students, Teachers and pupils, all interested persons
    Biology, Environment / ecology, Medicine, Nutrition / healthcare / nursing, Zoology / agricultural and forest sciences
    transregional, national
    Research results, Transfer of Science or Research
    English


     

    Deer


    For download

    x

    Help

    Search / advanced search of the idw archives
    Combination of search terms

    You can combine search terms with and, or and/or not, e.g. Philo not logy.

    Brackets

    You can use brackets to separate combinations from each other, e.g. (Philo not logy) or (Psycho and logy).

    Phrases

    Coherent groups of words will be located as complete phrases if you put them into quotation marks, e.g. “Federal Republic of Germany”.

    Selection criteria

    You can also use the advanced search without entering search terms. It will then follow the criteria you have selected (e.g. country or subject area).

    If you have not selected any criteria in a given category, the entire category will be searched (e.g. all subject areas or all countries).