TY - JOUR

T1 - Species which may act as vectors or reservoirs of diseases covered by the Animal Health Law: Listed pathogens of crustaceans

AU - EFSA Panel on Animal Health and Welfare, null

AU - Nielsen, Søren Saxmose

AU - Alvarez, Julio

AU - Bicout, Dominique

AU - Calistri, Paolo

AU - Canali, Elisabetta

AU - Drewe, Julian Ashley

AU - Garin-Bastuji, Bruno

AU - Gonzales Rojas, José Louis

AU - Smith, Christian Gortazar

AU - Herskin, Mette

AU - Michel, Virginie

AU - Miranda Chueca, Miguel Angel

AU - Padalino, Barbara

AU - Spoolder, Hans

AU - Ståhl, Karl

AU - Velarde, Antonio

AU - Viltrop, Arvo

AU - Winckler, Christoph

AU - Arzul, Isabelle

AU - Dharmaveer, Shetty

AU - Sindre, Hilde

AU - Stone, David

AU - Vendramin, Niccoló

AU - Alemu, Selam

AU - Antoniou, Sotiria-Eleni

AU - Aznar, Inma

AU - Barizzone, Fulvio

AU - Dhollander, Sofie

AU - Gnocchi, Marzia

AU - Karagianni, Anna Eleonora

AU - Kero, Linnea Lindgren

AU - Munoz Guajardo, Irene Pilar

AU - Roberts, Helen

PY - 2023

Y1 - 2023

N2 - Vector or reservoir species of three diseases of crustaceans listed in the Animal Health Law were identified based on evidence generated through an extensive literature review, to support a possible updating of Regulation (EU) 2018/1882. Crustacean species on or in which Taura syndrome virus (TSV), Yellow head virus (YHV) or White spot syndrome virus (WSSV) were identified, in the field or during experiments, were classified as reservoir species with different levels of certainty depending on the diagnostic tests used. Where experimental evidence indicated transmission of the pathogen from a studied species to another known susceptible species, the studied species was classified as vector species. Although the quantification of the risk of spread of the pathogens by the vectors or reservoir species was not part of the terms of reference, such risks do exist for the vector species, since transmission from infected vector species to susceptible species was proven. Where evidence for transmission from infected crustaceans was not found, these were defined as reservoirs. Nonetheless, the risk of the spread of the pathogens from infected reservoir species cannot be excluded. Evidence identifying conditions that may prevent transmission by vectors during transport was collected from scientific literature. It was concluded that it is very likely to almost certain (90?100%) that WSSV, TSV and YHV will remain infective at any possible transport condition. Therefore, vector or reservoir species that may have been exposed to these pathogens in an affected area in the wild or aquaculture establishments or by water supply can possibly transmit WSSV, TSV and YHV.

AB - Vector or reservoir species of three diseases of crustaceans listed in the Animal Health Law were identified based on evidence generated through an extensive literature review, to support a possible updating of Regulation (EU) 2018/1882. Crustacean species on or in which Taura syndrome virus (TSV), Yellow head virus (YHV) or White spot syndrome virus (WSSV) were identified, in the field or during experiments, were classified as reservoir species with different levels of certainty depending on the diagnostic tests used. Where experimental evidence indicated transmission of the pathogen from a studied species to another known susceptible species, the studied species was classified as vector species. Although the quantification of the risk of spread of the pathogens by the vectors or reservoir species was not part of the terms of reference, such risks do exist for the vector species, since transmission from infected vector species to susceptible species was proven. Where evidence for transmission from infected crustaceans was not found, these were defined as reservoirs. Nonetheless, the risk of the spread of the pathogens from infected reservoir species cannot be excluded. Evidence identifying conditions that may prevent transmission by vectors during transport was collected from scientific literature. It was concluded that it is very likely to almost certain (90?100%) that WSSV, TSV and YHV will remain infective at any possible transport condition. Therefore, vector or reservoir species that may have been exposed to these pathogens in an affected area in the wild or aquaculture establishments or by water supply can possibly transmit WSSV, TSV and YHV.

KW - Vectors

KW - Reservoir

KW - Taura syndrome virus (TSV)

KW - yellow head virus (YHV) or White spot syndrome virus (WSSV)

KW - transport conditions

U2 - 10.2903/j.efsa.2023.8172

DO - 10.2903/j.efsa.2023.8172

M3 - Journal article

C2 - 37533749

VL - 21

SP - 1

EP - 33

JO - E F S A Journal

JF - E F S A Journal

SN - 1831-4732

IS - 8

M1 - e08172

ER -