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Netherlands - Atypical BSE variant ('Mad Cow Disease') found in cattle in South Holland

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  • Netherlands - Atypical BSE variant ('Mad Cow Disease') found in cattle in South Holland

    Translation Google

    Atypical BSE variant found in cattle in South Holland

    News item | 01-02-2023 | 5:13 pm

    A positive case of BSE ('Mad Cow Disease') was found this week in the cadaver of an 8-year-old cow in South Holland. Wageningen Bioveterinary Research (WBVR) has investigated which variant of BSE it concerns. The result of WBVR indicates that this is an atypical variant.

    Atypical cases of BSE occur sporadically in older cows, a type of 'old-age BSE'. The last time this occurred in the Netherlands was 2011. Scientists believe that the atypical variants can arise spontaneously. So far, four atypical cases have been identified in the Netherlands.

    Minister Piet Adema: It is really shocking when you hear that a cow has tested positive for BSE, because we have not had a BSE case for a long time. I am relieved that this is now the so-called 'atypical variant', so the consequences are mainly limited to the company in question. It is of course very bad for the livestock farmer in question. 13 cattle that are related to this cow because they are descendants or have been raised together will be taken away to be killed and tested. This case has been resolved with these measures. Food safety is not at risk. It is good to note that our monitoring system for BSE does work.

    Continuation

    The company of the holder of the positive case is immediately blocked. The Dutch Food and Consumer Product Safety Authority (NVWA) has carried out source and contact research in which the offspring of this cow younger than 2 years old are killed and tested. In order to perform BSE tests on brain material, the animal must first be killed.

    The NVWA's source and contact investigation showed that the infected bovine had five offspring, one of which is still alive on the same farm. This bovine is less than 2 years old. This one is killed and tested. The remaining four offspring are older than two years, making it unlikely that transmission from mother to these calves could have taken place. They therefore pose no risk to public health.

    All cattle born on the same farm as the infected cattle within twelve months before or after the birth of this cattle will also be killed and tested, as well as all cattle that were kept together with this infected cattle in their first year of life. and who, according to the study, received the same potentially contaminated feed during that period.

    A total of 13 cattle have been traced, these are being taken away to be killed and tested. As a result, the products of these animals do not enter the food chain and therefore pose no risk to food safety.

    The measures will be implemented as soon as possible.


    What is BSE?

    BSE (Bovine Spongiform Encephalopathy (BSE)) is a fatal disease that occurs in cattle affecting the central nervous system. It is also a zoonosis that can cause the deadly brain disease variant Creutzfeldt-Jacob in humans. Infection can occur through consumption of infected cattle. There is therefore a European monitoring program in which all cadavers in certain risk groups are tested for the presence of BSE.The bovine that has now been found positive has been traced through this active surveillance.

    There are two variants: the atypical variant, which is now the case, and the 'classic variant', which led to the BSE crisis in Europe in the 1980s. Reuse of animal proteins in animal feed was an important cause of the spread of classical BSE. This was followed by a ban on the use of certain types of processed animal proteins in animal feed for cattle.

    Documents

    Er is deze week een positief geval van BSE (‘Gekkekoeienziekte’) gevonden bij het kadaver van een 8-jarige koe in Zuid-Holland. Wageningen Bioveterinary Research (WBVR) heeft onderzocht welke variant van BSE het betreft. Het resultaat van WBVR geeft aan dat het hier een atypische variant betreft.
    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela

  • #2
    Netherlands - Bovine spongiform encephalopathy - Immediate notification

    GENERAL INFORMATION
    COUNTRY/TERRITORY OR ZONE
    COUNTRY/TERRITORY

    ANIMAL TYPE
    TERRESTRIAL

    DISEASE CATEGORY
    OIE-listed

    EVENT ID
    4876

    DISEASE
    Bovine spongiform encephalopathy

    CAUSAL AGENT
    Bovine spongiform encephalopathy prion, atypical strain, L-type

    GENOTYPE / SEROTYPE / SUBTYPE
    -

    START DATE
    2023/02/01

    REASON FOR NOTIFICATION
    Recurrence of an eradicated disease

    DATE OF LAST OCCURRENCE
    2011/01/11

    CONFIRMATION DATE
    2023/02/01

    EVENT STATUS
    On-going

    END DATE
    -

    SELF-DECLARATION
    NO

    REPORT INFORMATION
    REPORT NUMBER
    Immediate notification

    REPORT ID
    IN_159092

    REPORT REFERENCE
    NL-BSE 2023-1

    REPORT DATE
    2023/02/02

    REPORT STATUS
    Validated

    NO EVOLUTION REPORT
    -

    EPIDEMIOLOGY
    SOURCE OF EVENT OR ORIGIN OF INFECTION
    Unknown or inconclusive

    EPIDEMIOLOGICAL COMMENTS

    Results from TeSeE Western Blot test and Histology/ PrPSC Immunohistochemical test at the National Reference Laboratory Wageningen Bioveterinary Research (WBVR) confirmed the animal positive for atypical BSE of the L-type on the 1st of February 2023. The animal which was born on 5 October 2014 was killed on the holding with clinical signs of disease not related to BSE. As part of the Dutch targeted BSE surveillance system, the 8 year old cow was tested as fallen stock at the NRL WBVR with positive result of TeSeE SAP Combi Kit ELISA (BioRad) test. The animal's carcass was destroyed. The identified animal did not enter food supply channels and so at no time did it present any risk to human health. Epidemiological investigations are ongoing (socalled feedcohort/birthcohort and offspring within 2 years).

    QUANTITATIVE DATA SUMMARY
    MEASURING UNIT
    Animal

    SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated
    Cattle (DOMESTIC)NEW 91 1 0 1 0 0
    TOTAL 91 1 0 1 0 0
    DIAGNOSTIC DETAILS
    CLINICAL SIGNS
    YES
    ...

    NEW OUTBREAKS

    OB_113294 - ZUID BEIJERLAND
    OUTBREAK REFERENCE
    -

    START DATE
    2023/02/01

    END DATE
    -

    DETAILED CHARACTERISATION
    -

    FIRST ADMINISTRATIVE DIVISION
    Zuid-Holland

    SECOND ADMINISTRATIVE DIVISION
    Korendijk

    THIRD ADMINISTRATIVE DIVISION
    -

    EPIDEMIOLOGICAL UNIT
    Farm

    LOCATION
    Zuid Beijerland

    Latitude, Longitude
    51.76 , 4.36

    OUTBREAKS IN CLUSTER
    -

    MEASURING UNIT
    Animal

    AFFECTED POPULATION DESCRIPTION
    -

    SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated
    Cattle (DOMESTIC)NEW91 1 0 1 0 0
    TOTAL 91 1 0 1 0 0
    ...
    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela

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