tetano
Editor, Senior Moderator
EFSA J
. 2021 Jan 18;19(1):e06372.
doi: 10.2903/j.efsa.2021.6372. eCollection 2021 Jan.
Scientific Opinion on the assessment of the control measures of the category A diseases of Animal Health Law: Highly Pathogenic Avian Influenza
EFSA Panel on Animal Health and Welfare (EFSA AHAW Panel); S?ren Saxmose Nielsen, Julio Alvarez, Dominique Joseph Bicout, Paolo Calistri, Klaus Depner, Julian Ashley Drewe, Bruno Garin-Bastuji, Jos? Luis Gonzales Rojas, Christian Gort?zar Schmidt, Mette Herskin, Virginie Michel, Miguel ?ngel Miranda Chueca, Paolo Pasquali, Helen Clare Roberts, Liisa Helena Sihvonen, Hans Spoolder, Karl Stahl, Antonio Velarde Calvo, Arvo Viltrop, Christoph Winckler, Kris De Clercq, Eyal Klement, Jan Arend Stegeman, Simon Gubbins, Sotiria-Eleni Antoniou, Alessandro Broglia, Yves Van der Stede, Gabriele Zancanaro, Inma Aznar
Abstract
EFSA received a mandate from the European Commission to assess the effectiveness of some of the control measures against diseases included in the Category A list according to Regulation (EU) 2016/429 on transmissible animal diseases ('Animal Health Law'). This opinion belongs to a series of opinions where these control measures will be assessed, with this opinion covering the assessment of control measures for Highly Pathogenic Avian Influenza (HPAI). In this opinion, EFSA and the AHAW Panel of experts review the effectiveness of: (i) clinical and laboratory sampling procedures, (ii) monitoring period and (iii) the minimum radius of the protection and surveillance zone, and the minimum length of time the measures should be applied in these zones. The general methodology used for this series of opinions has been published elsewhere; nonetheless, specific details of the model used for the assessment of the laboratory sampling procedures for HPAI are presented here. Here, also, the transmission kernels used for the assessment of the minimum radius of the protection and surveillance zones are shown. Several scenarios for which these control measures had to be assessed were designed and agreed prior to the start of the assessment. In summary, sampling procedures as described in the diagnostic manual for HPAI were considered efficient for gallinaceous poultry, whereas additional sampling is advised for Anseriformes. The monitoring period was assessed as effective, and it was demonstrated that the surveillance zone comprises 95% of the infections from an affected establishment. Recommendations provided for each of the scenarios assessed aim to support the European Commission in the drafting of further pieces of legislation, as well as for plausible ad hoc requests in relation to HPAI.
Keywords: Avian Influenza; Control measures; HPAI; monitoring period; protection zone; sampling procedures; surveillance zone.
. 2021 Jan 18;19(1):e06372.
doi: 10.2903/j.efsa.2021.6372. eCollection 2021 Jan.
Scientific Opinion on the assessment of the control measures of the category A diseases of Animal Health Law: Highly Pathogenic Avian Influenza
EFSA Panel on Animal Health and Welfare (EFSA AHAW Panel); S?ren Saxmose Nielsen, Julio Alvarez, Dominique Joseph Bicout, Paolo Calistri, Klaus Depner, Julian Ashley Drewe, Bruno Garin-Bastuji, Jos? Luis Gonzales Rojas, Christian Gort?zar Schmidt, Mette Herskin, Virginie Michel, Miguel ?ngel Miranda Chueca, Paolo Pasquali, Helen Clare Roberts, Liisa Helena Sihvonen, Hans Spoolder, Karl Stahl, Antonio Velarde Calvo, Arvo Viltrop, Christoph Winckler, Kris De Clercq, Eyal Klement, Jan Arend Stegeman, Simon Gubbins, Sotiria-Eleni Antoniou, Alessandro Broglia, Yves Van der Stede, Gabriele Zancanaro, Inma Aznar
- PMID: 33488812
- PMCID: PMC7812451
- DOI: 10.2903/j.efsa.2021.6372
Abstract
EFSA received a mandate from the European Commission to assess the effectiveness of some of the control measures against diseases included in the Category A list according to Regulation (EU) 2016/429 on transmissible animal diseases ('Animal Health Law'). This opinion belongs to a series of opinions where these control measures will be assessed, with this opinion covering the assessment of control measures for Highly Pathogenic Avian Influenza (HPAI). In this opinion, EFSA and the AHAW Panel of experts review the effectiveness of: (i) clinical and laboratory sampling procedures, (ii) monitoring period and (iii) the minimum radius of the protection and surveillance zone, and the minimum length of time the measures should be applied in these zones. The general methodology used for this series of opinions has been published elsewhere; nonetheless, specific details of the model used for the assessment of the laboratory sampling procedures for HPAI are presented here. Here, also, the transmission kernels used for the assessment of the minimum radius of the protection and surveillance zones are shown. Several scenarios for which these control measures had to be assessed were designed and agreed prior to the start of the assessment. In summary, sampling procedures as described in the diagnostic manual for HPAI were considered efficient for gallinaceous poultry, whereas additional sampling is advised for Anseriformes. The monitoring period was assessed as effective, and it was demonstrated that the surveillance zone comprises 95% of the infections from an affected establishment. Recommendations provided for each of the scenarios assessed aim to support the European Commission in the drafting of further pieces of legislation, as well as for plausible ad hoc requests in relation to HPAI.
Keywords: Avian Influenza; Control measures; HPAI; monitoring period; protection zone; sampling procedures; surveillance zone.