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Emerging infectious diseases in cetaceans worldwide and the possible role of environmental stressors
Van Bressem, M.-F.; Raga, J.A.; Di Guardo, G.; Jepson, P.D.; Duignan, P.J.; Siebert, U.; Barrett, T.; de Oliveira Santos, M.C.; Moreno, I.B.; Siciliano, S.; Aguilar, A.; Van Waerebeek, K. (2009). Emerging infectious diseases in cetaceans worldwide and the possible role of environmental stressors. Dis. Aquat. Org. 86(2): 143-157.
In: Diseases of Aquatic Organisms. Inter Research: Oldendorf/Luhe. ISSN 0177-5103, more
Peer reviewed article  

Available in  Authors 

    Brucella Meyer & Shaw, 1920 [WoRMS]; Cetacea [WoRMS]; Lacazia loboi; Morbillivirus [WoRMS]; Papillomaviridae [WoRMS]; Poxviridae [WoRMS]; Toxoplasma gondii (Nicolle & Manceaux, 1908) [WoRMS]; Marine
Author keywords
    Emerging diseases · Cetaceans · Morbilliviruses · Poxviruses · Papillomaviruses · Brucella spp. · Lacazia loboi · Toxoplasma gondii · Environmental stressors · Zoonosis

Authors  Top 
  • Van Bressem, M.-F.
  • Raga, J.A., more
  • Di Guardo, G.
  • Jepson, P.D.
  • Duignan, P.J.
  • Siebert, U.
  • Barrett, T.
  • de Oliveira Santos, M.C.
  • Moreno, I.B.
  • Siciliano, S.
  • Aguilar, A.
  • Van Waerebeek, K., more

    We reviewed prominent emerging infectious diseases of cetaceans, examined their potential to impact populations, re-assessed zoonotic risk and evaluated the role of environmental stressors. Cetacean morbilliviruses and papillomaviruses as well as Brucella spp. and Toxoplasma gondii are thought to interfere with population abundance by inducing high mortalities, lowering reproductive success or by synergistically increasing the virulence of other diseases. Severe cases of lobomycosis and lobomycosis-like disease (LLD) may contribute to the death of some dolphins. The zoonotic hazard of marine mammal brucellosis and toxoplasmosis may have been underestimated, attributable to frequent misdiagnoses and underreporting, particularly in developing countries and remote areas where carcass handling without protective gear and human consumption of fresh cetacean products are commonplace. Environmental factors seem to play a role in the emergence and pathogenicity of morbillivirus epidemics, lobomycosis/LLD, toxoplasmosis, poxvirus-associated tattoo skin disease and, in harbour porpoises, infectious diseases of multifactorial aetiology. Inshore and estuarine cetaceans incur higher risks than pelagic cetaceans due to habitats often severely altered by anthropogenic factors such as chemical and biological contamination, direct and indirect fisheries interactions, traumatic injuries from vessel collisions and climate change.

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