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. 2022 Jan 24;20(1):e07121. doi: 10.2903/j.efsa.2022.7121
ToRs Legislation Scenario Description of the Scenario Elements of the Scenario
ToR 1.1
ToR 1.2 6(2) of the Delegated Regulation 1st Scenario To assess the effectiveness of disease‐specific sampling procedures of animals of listed species in a suspected establishment, based on clinical examination (TOR 1.1) and laboratory examination (TOR 1.2), in their ability to detect a category A disease in kept animals if the disease is present in that establishment, or to rule it out if not present (Art. 6 (2)).
  • event of suspicion of a category A disease

  • in an establishment

  • kept animals of listed species

  • the competent authority shall immediately conduct an investigation to confirm or rule out the presence of the suspected listed disease

  • official veterinarians perform clinical examinations and collect samples for laboratory examinations

ToR 1.2 Art. 12(3)
Art. 7 (4) (Preventive killing) of the Delegated Regulation, and Art. 57 Reg.2016/429 2nd Scenario To assess the effectiveness of disease‐specific sampling procedures, based on laboratory examination (ToR 1.2), in their ability to detect the disease in the event of preventive killing, and in their ability to support with the epidemiological investigation (disease detection, prevalence estimation, virus identification, etc.) in kept animals of listed species in an affected establishment, before or when they are killed or found dead. The purposes of the epidemiological enquiry are described in Article 57 of Regulation (EU)2016/429.
  • affected establishment officially confirmed

  • kept animals of listed species found dead or before/when they are killed

  • competent authority collects samples for laboratory examination

for the purposes of:
  • a

    supporting the epidemiological enquiry:

  • to identify the likely origin of the disease

  • to calculate the likely length of time that the disease is present

  • to identify establishments where the animals could have contracted the disease and movements from the affected establishment that could have led to the spread of the disease

  • to obtain information on the likely spread of the listed disease in the surrounding environment, including the presence and distribution of disease vectors

  • c

    confirming/ruling out disease in the event of preventive killing

ToR 1.1
ToR 1.2 Article 13(3)c of the Delegated Regulation 3rd Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical (ToR 1.1) and laboratory (ToR 1.2) examinations of the animals of listed species belonging to the categories described in article 13(2)) of an affected establishment, in order to grant a specific derogation from killing these animals, while ensuring that they do not pose a risk for the transmission of the disease.
  • affected establishment officially confirmed

  • kept animals of listed species of specific categories

  • animal categories based on article 13(2):

  1. animals kept in a confined establishment

  2. animals kept for scientific purposes or purposes related to conservation of protected or endangered species

  3. animals officially registered in advance as rare breeds

  4. animals with a duly justified high genetic, cultural or educational value

  • the competent authority may grant specific derogation from killing all the animals of listed species belonging to any of the above categories in an affected establishment, provided that specific conditions are fulfilled

  • the animals should be subjected to clinical surveillance, including laboratory examinations

  • sampling procedures should ensure that the animals do not pose a risk of transmission of the category A disease if left alive

ToR 1.1
ToR 1.2 Article 14(1) of the Delegated Regulation
Art. 57 Reg.2016/429 4th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical (ToR 1.1) and laboratory (ToR 1.2) examinations of the animals of non‐listed species kept in an affected establishment, in their ability to ensure the detection of the virus if the virus is present in these species.
  • kept animals of non‐listed species of epidemiological relevance for the control of the disease

  • animals of non‐listed species are those animals that are not listed in Commission Implementing Regulation (EU) 2018/1882 for each of the category A diseases

  • animal species acting purely as mechanical carriers of the virus will not be covered

  • The competent authority is not obliged to carry out the sampling of non‐listed species, but they may establish it in addition to other measures

  • sampling procedures to ensure detection of the virus in these species

ToR 1.1
ToR 1.2 Article 14(1) of the Delegated Regulation Art. 57 Reg.2016/429 5th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical (ToR 1.1) and laboratory (ToR 1.2) examinations of the wild animals of listed species within the affected establishment and in its surroundings. The purpose of the sampling procedures is to ensure the detection of the virus, if the virus is present in these wild species
  • affected establishment officially confirmed

  • wild animals of listed species within the establishment and in the surroundings of the establishment

  • the competent authority may establish these sampling procedures in addition to other measures

  • sampling procedures in wild animals of listed species to ensure the detection of the virus, if the virus is present in these wild species

ToR 1.1
ToR 1.2 Article 26(2) of the Delegated Regulation 6th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical (ToR 1.1) and laboratory (ToR 1.2) examinations of the animals of listed species in establishments located in the protection zone. The purpose of the sampling procedures is to ensure the detection of the virus, if the virus is present in these animals.
  • protection zone with radius up to 3 km

  • non‐affected establishments with kept animals of listed species

  • all the non‐affected establishments within the protection zone

  • official veterinarians must visit at least once all the establishments

  • among others, they must perform a clinical examination of kept animals of listed species and if necessary, collection of samples for laboratory examination

  • sampling procedures to confirm or rule out the presence of a category A disease

ToR 1.3 Article 26(5) of the Delegated Regulation point A.3 of Annex I 7th Scenario To assess the effectiveness of disease‐specific sampling procedures, based on clinical (ToR 1.1) and laboratory (ToR 1.2) examinations of the animals of listed species, for the sampling of establishments located in a protection zone when the radius is larger than 3 km. The purpose of the sampling procedure is to ensure disease detection of the virus if the virus is present in establishments within the protection zone
  • protection zone with radius larger than 3 km

  • non‐affected establishments of kept animals of listed species

  • sample of the non‐affected establishments in the protection zone

  • in a protection zone with a radius equal to 3 km, official veterinarians must carry inspections in all establishments within the 3 km

  • In case of a radius larger than 3 km, official veterinarians may not visit all establishments, but a sample of those. EFSA is requested to assess how many of these establishments should be inspected, in order to ensure the detection of the virus, if the virus is present in animals in these establishments

  • among others perform clinical examination of kept animals of listed species and if necessary, collection of samples for laboratory examination

  • sampling procedure to ensure the detection of the disease if the disease is present in any of these establishments

ToR 1.3 Article 41 of the Delegated Regulation 8th Scenario To assess the effectiveness of disease‐specific sampling procedures, based on clinical (ToR 1.1) and laboratory (ToR 1.2) examinations of the animals of listed species, for the sampling of the establishments located within the surveillance zone. The purpose of the sampling procedure is to ensure disease detection if the virus is present in establishments within the surveillance zone
  • surveillance zone

  • establishments of kept animals of listed species

  • sample of the establishments in the surveillance zone

  • official veterinarians carry out visits to a sample of the establishments

  • among others perform clinical examination of kept animals of listed species and if necessary, collection of samples for laboratory examination

  • sampling procedure to ensure the detection of the disease if the disease is present in any of the establishments

Derogations to allow animal movements
ToR 1.4 Article 28(5) of the Delegated Regulation Article 29 of the Delegated Regulation 9th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations of the animals of an establishment in a protection zone, in order to grant a derogation from prohibitions in the movement of animals, and allow for the animals to be moved to a slaughterhouse located within the protection zone or in the surveillance zone or outside the restricted zone (Art29)
  • protection zone

  • kept animals of listed species

  • grant derogation for movement from a non‐affected establishment in the protection zone

  • to be moved to a slaughterhouse located within the protection zone or in the surveillance zone or outside the restricted zone

  • clinical examinations and laboratory examination of animals kept in the establishment, including those animals to be moved

ToR 1.4 Article 28(5) and Article 30(1) of the Delegated Regulation 10th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations, to grant a derogation from prohibitions in the movement of day‐old‐chicks located in the protection zone and hatched from eggs originating in the restricted zone or outside the restricted zone. The sampling procedures should ensure that the movement of these day‐old‐chicks to an establishment located in the same Member State but if possible, outside the restricted zone
  • protection zone

  • grant derogation for movement from a non‐affected establishment in the protection zone

  • day‐old-chicks from non‐affected establishment located in the protection zone, hatched from eggs originating in or outside the restricted zone

  • to be moved to an establishment located in the same Member State but if possible, outside the restricted zone

  • clinical examinations and laboratory examination of animals kept in the establishment, including those animals to be moved

ToR 1.4 Article 28(5) and Article 30(2) of the Delegated Regulation 11th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations, to grant a derogation from prohibitions in the movement of ready‐to‐lay poultry located in the protection zone to establishments located in the same MS and if possible within the restricted zone.
  • protection zone

  • ready‐to-lay poultry

  • grant derogation for movement from a non‐affected establishment in the protection zone

  • to be moved to an establishment located in the same Member State and if possible, within the restricted zone

  • clinical examinations and laboratory examination of animals kept in the establishment, including those animals to be moved

ToR 1.4 Article 28(5) and Article 37 of the Delegated Regulation 12th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations of the animals of an establishment in a protection zone, in order to grant derogation from prohibitions in the movement of these animals to a plant approved for processing or disposal of animal by‐products in which the kept animals are immediately killed (Art37)
  • protection zone

  • kept animals of listed species

  • grant derogation for movement from a non‐affected establishment in the protection zone

  • to be moved to a plant approved for processing or disposal of animal by‐products in which the kept animals are immediately killed

  • clinical examinations and laboratory examinations of animals kept in the establishment, including those animals to be moved

ToR 1.4 Article 43(5) and Article 44 of the Delegated Regulation 13th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations of the animals of listed species in order to grant derogation from prohibitions and allow for these animals to be moved: a) from an establishment in a surveillance zone to a slaughterhouse located within or outside the restricted zone, b)from an establishment outside the surveillance zone to a slaughterhouse situated in the surveillance zone
  • surveillance zone

  • kept animals of listed species

  • grant derogation for movement from an establishment in the surveillance zone to be moved to a slaughterhouse within the restricted zone or outside the restricted zone

  • grant derogation for movement from an establishment outside the surveillance zone to a slaughterhouse situated in the surveillance zone

  • clinical examinations and laboratory examination of animals kept in the establishment, including those animals to be moved

ToR 1.4 Article 43(5) and Article 45(1) of the Delegated Regulation 14th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations of kept ungulates of listed species in order to grant a derogation and allow for the animals to be moved from an establishment in the surveillance zone to pastures situated within the surveillance zone
  • surveillance zone

  • kept ungulates of listed species

  • grant derogation for movement from an establishment in the surveillance zone

  • to be moved to pastures situated within the surveillance zone

  • clinical examinations and laboratory examination of animals kept in the establishment, including those animals to be moved

ToR 1.4 Article 43(5) and Article 45(2) of the Delegated Regulation 15th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations of kept ungulates of listed species in order to grant derogation and allow to be moved from an establishment in the surveillance zone to an establishment belonging to the same supply chain, located in or outside the surveillance zone, in order to complete the production cycle before slaughter
  • surveillance zone

  • kept animals of listed species

  • grant derogation for movement from the surveillance zone

  • to be moved to an establishment belonging to the same supply chain, located in or outside the surveillance zone, to complete the production cycle before slaughter

  • clinical examinations and laboratory examination of animals kept in the establishment, including those animals to be moved

ToR 1.4 Article 43(5) and Article 46(1) of the Delegated Regulation 16th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations to grant derogation of movements of day‐old‐chicks hatched from establishment located in the surveillance zone, from eggs originating within the surveillance zone and eggs originating outside the restricted zone, to an establishment located in the same Member State where they were hatched
  • surveillance zone

  • kept birds of listed species

  • grant derogation for movement of day-old‐chicks hatched from establishment located in the surveillance zone, from eggs originating from establishment within the surveillance zone or eggs originating from outside the restricted zone

  • to be moved to an establishment located in the same Member State

  • clinical examinations and laboratory examination of animals kept in the establishment, including those animals to be moved

ToR 1.4 Article 43(5) and Article 46(2) of the Delegated Regulation 17th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations, to grant a derogation from prohibitions in the movement of ready‐to‐lay poultry located in the surveillance zone to establishments located in the same MS.
  • surveillance zone

  • ready‐to-lay poultry

  • to be moved to an establishment located in the same Member State

  • clinical examinations and laboratory examination of animals kept in the establishment, including those animals to be moved

ToR 1.4 Article 56(1)c of the Delegated Regulation 18th Scenario To assess the effectiveness of disease‐specific sampling procedures based on clinical and/or laboratory examinations of the animals of an establishment located in the restricted zone of an outbreak in order to allow their move within the restricted zone, when restriction measures are maintained beyond the period set out in Annex XI
  • restricted zone when restriction measures are maintained beyond the period set out in Annex XI

  • kept animals of listed species

  • grant derogation for movement from an establishment within the restricted zone

  • clinical examinations and laboratory examination of animals kept in the establishment, including those animals to be moved

Repopulation
ToR 1.5 Article 59(2),(3) of the Delegated Regulation 19th Scenario To assess the effectiveness of disease‐specific sampling procedures based on laboratory examinations of the animals that are kept for the repopulation prior to their introduction to rule out the presence of the disease.
  • repopulation of a previous affected establishment

  • kept animals of listed species

  • Animals intended to repopulation shall be sampled prior to their introduction into the establishment of destination

  • samples shall be collected from a representative number of animals to be introduced of each consignment from each establishment or from a representative number of animals of each consignment (if animals are all to be introduced at different times or from different establishments of origin)

  • laboratory examinations

  • sampling procedures to rule out the presence of the disease

ToR 1.5 Article 59(9) of the Delegated Regulation 20th Scenario To assess the effectiveness of disease‐specific sampling procedures based on laboratory examinations of the animals that have been repopulated, in the event of unusual mortalities or clinical signs being notified during the repopulation; to rule out the presence of the disease.
  • repopulated establishment

  • unusual mortalities or clinical signs during the repopulation

  • the official veterinarians shall without delay collect samples for laboratory examination

  • sampling procedures to rule out the presence of the disease

ToR 1.5 Article 59(5) of the Delegated Regulation 21st Scenario To assess the effectiveness of disease‐specific sampling procedures based on laboratory examinations of the animals that have been repopulated, on the last day of the monitoring period calculated forward from the date on which the animals were placed in the repopulated establishment. In case the repopulation takes place in several days, the monitoring period will be calculated forward from the last day in which the last animal is introduced in the establishment.
  • repopulated establishment

  • kept animals of listed species

  • Animals that have been used for repopulation

  • Laboratory examinations

  • Sampling procedures to rule out the presence of the disease