RT Journal Article
T1 Species which may act as vectors or reservoirs of diseases covered by the Animal Health Law: Listed pathogens of molluscs
A1 EFSA Panel on Animal Health and Welfare (AHAW), 
A1 Saxmose Nielsen, Søren
A1 Álvarez Sánchez, Julio
A1 Bicout, Dominique
A1 Calistri, Paolo
A1 Canali, Elisabetta
A1 Ashley Drewe, Julian
A1 Garin Bastuji, Bruno
A1 Gonzales Rojas, José Louis
A1 Gortazar Smith, Christian
A1 Herskin, Mette
A1 Michel, Virginie
A1 Miranda Chueca, Miguel Ángel
A1 Padalino, Barbara
A1 Roberts, Helen
A1 Spoolder, Hans
A1 Ståhl, Karl
A1 Velarde, Antonio
A1 Viltrop, Arvo
A1 Winckler, Christoph
A1 Arzul, Isabelle
A1 Dharmaveer, Shetty
A1 Jørgen Olesen, Niels
A1 Schiøtt, Morten
A1 Sindre, Hilde
A1 Stone, David
A1 Vendramin, Niccoló
A1 Antoniou, Sotiria Eleni
A1 Dhollander, Sofie
A1 Karagianni, Anna Eleonora
A1 Lindgren Kero, Linnea
A1 Gnocchi, Marzia
A1 Aznar, Inma
A1 Barizzone, Fulvio
A1 Munoz Guajardo, Irene Pilar
A1 Roberts, Helen
AB Vector or reservoir species of five mollusc diseases 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. Mollusc species on or in which Mikrocytos mackini, Perkinsus marinus, Bonamia exitiosa, Bonamia ostreae and Marteilia refringens were detected, 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, this studied species was classified as a 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 molluscs was not found, these were defined as reservoir. 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 or reservoir mollusc species during transport was collected from scientific literature. It was concluded that it is very likely to almost certain (90–100%) that M. mackini, P. marinus, B. exitiosa B. ostreae and M. refringens 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 at aquaculture establishments or through contaminated water supply can possibly transmit these pathogens. For transmission of M. refringens, the presence of an intermediate host, a copepod, is necessary.
PB Wiley
SN 1831-4732
YR 2023
FD 2023
LK https://hdl.handle.net/20.500.14352/108507
UL https://hdl.handle.net/20.500.14352/108507
LA eng
NO EFSA AHAW Panel (EFSA Panel on Animal Health and Welfare), Nielsen, S. S., Alvarez, J., Bicout, D., Calistri, P., Canali, E., Drewe, J. A., Garin-Bastuji, B., Gonzales Rojas, J. L., Smith, C. G., Herskin, M., Michel, V., Miranda Chueca, M. A., Padalino, B., Spoolder, H., Ståhl, K., Velarde, A., Viltrop, A., Winckler, C., … Roberts, H. (2023). Species which may act as vectors or reservoirs of diseases covered by the Animal Health Law: Listed pathogens of molluscs. EFSA Journal, 21(8), 1–34. https://doi.org/10.2903/j.efsa.2023.8173
DS Docta Complutense
RD 22 abr 2026