A novel case of food poisoning caused by the consumption of Pacific bluefin tuna infected with <i>Kudoa</i><i>hexapunctata</i>

Tachibana, Takayuki; Watari, Takashi

doi:10.1002/ccr3.4222

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…The parasite can secrete an enzyme into the fish tissue post‐mortem, which, over the course of 24–72 h, can degrade the tissue into a soft, jelly‐like substance. With over 100 species of Kudoa identified in the genus thus far (WoRMS, 2023), they generally do not cause mortality or affect human health (but see Iwashita et al, 2013, and Tachibana & Watari, 2021, for exceptions). However, product marketability is reduced as a direct consequence of jellymeat, which particularly affects high‐value, commercially valuable fish (e.g., yellowfin tuna, Pacific bluefin tuna, dolphinfish, Atlantic mackerel and Atlantic salmon) (Bolin, Cummins, et al, 2021; Giulietti et al, 2022; Langdon, 1991 Moran, Whitaker, & Kent, 1999; Yokoyama et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

A warming western boundary current increases the prevalence of commercially disruptive parasites in broadbill swordfish

Bolin,

Evans,

Schoeman

et al. 2024

Fisheries Oceanography

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Meat quality is of paramount importance in the fisheries and aquaculture industries, but the quality of seafood can be affected by environmental variability and change, creating uncertainties in the delivery of consistent, high‐end product. Reports from fishers operating in an Australian fishery catching broadbill swordfish (Xiphias gladius) suggest that anomalously warm waters are linked with myoliquefaction of muscle tissue. The condition affects the marketability of fish by turning the meat into a soft, mushy texture post‐mortem and is caused by infection by the myxozoan parasite Kudoa musculoliquefaciens. Here, we combine microscopy, molecular techniques and ecological modelling to explore potential environmental drivers of the prevalence and intensity of K. musculoliquefaciens in swordfish, as a first step in understanding how a warming ocean might exacerbate the risk of harvesting an infected swordfish and the resultant potential risk of myoliquefaction. We develop predictive dynamic risk surfaces on seasonal timescales, with results revealing both the likelihood of harvesting an infected swordfish and the intensity of parasite load increase during the Austral summer. The prevalence of the parasite further increases in the region dominated by the East Australian Current, when locally warm areas are atypically cool and when average monthly temperatures are more variable. These findings provide information useful in predicting the conditions under which the risk of harvesting infected swordfish might be intensified, enabling adaptation to climate change impacts and optimisation of decision‐making when fishing under risky conditions.

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Section: Introductionmentioning

confidence: 99%

A warming western boundary current increases the prevalence of commercially disruptive parasites in broadbill swordfish

Bolin,

Evans,

Schoeman

et al. 2024

Fisheries Oceanography

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Exploring the Potential Role of the Genus Kudoa (Myxosporea: Kudoidae) as an Emerging Seafood-Borne Parasite in Humans

Shamsi,

Barton

2024

Curr Clin Micro Rpt

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Purpose of Review This article reviews and summarises the recent findings on emerging seafood-borne parasites, Kudoa spp., that have received comparatively little attention in the literature. Recent Findings Currently, two species, namely, K. hexapunctata and K. septempunctata, have been identified as causing infections in humans. However, it is worth noting that the existing nomenclature and methods for identifying Kudoa spp. may undergo substantial changes as more effective identification techniques are developed. This implies the possibility of additional species capable of infecting humans. The symptoms induced by these parasites in humans, such as vomiting and diarrhoea, can easily be confused with similar symptoms caused by other pathogens like viruses or bacteria. Consequently, misdiagnosis or underdiagnosis is quite common. Moreover, new hosts and expanded distribution patterns are being discovered on a regular basis. Summary This review sheds light on the potential of Kudoa spp. to cause diseases in humans, emphasizing the importance of comprehensive seafood safety measures to ensure responsible seafood consumption. Further investigation into these lesser-known parasites is warranted to better understand their prevalence, distribution, and pathogenicity in seafood-related infections.

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Is it possible to eliminate or eradicate human fish-borne parasitic diseases? A sweet dream or a nightmare?

Eiras

2024

Current Research in Parasitology & Vector-Borne Diseases

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A novel case of food poisoning caused by the consumption of Pacific bluefin tuna infected with Kudoahexapunctata

Abstract: This is an open access article under the terms of the Creative Commons Attribution NonCommercial NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non commercial and no modifications or adaptations are made.

Cited by 4 publications

References 8 publications

A warming western boundary current increases the prevalence of commercially disruptive parasites in broadbill swordfish

A warming western boundary current increases the prevalence of commercially disruptive parasites in broadbill swordfish

Exploring the Potential Role of the Genus Kudoa (Myxosporea: Kudoidae) as an Emerging Seafood-Borne Parasite in Humans

Is it possible to eliminate or eradicate human fish-borne parasitic diseases? A sweet dream or a nightmare?

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