Detection and genetic characterization of Toxoplasma gondii in market-sold mussels (Mytilus edulis) in certain provinces of China

Cong, Wei; Zhang, Nian‐Zhang; Yuan, Dongqi; Zou, Yang; Li, Shu; Liang, Zhenlin

doi:10.1016/j.micpath.2019.103687

Cited by 9 publications

(10 citation statements)

References 19 publications

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“…The higher seroprevalence observed with the consumption of mollusc/urchin aligns with the current knowledge that oocysts are present in aquatic environments and contribute to oocysts-borne infections (Shapiro et al, 2019). Molecular detection of the parasite is increasingly documented in coastal waters, bivalve shellfish, fish and marine mammals, elsewhere in the world (Aksoy et al, 2014;Cong et al, 2019;Coupe et al, 2018;Esmerini et al, 2010;Ghozzi et al, 2017;Miller et al, 2008;Putignani et al, 2011;Santoro et al, 2020;Shapiro et al, 2019;Staggs et al, 2015;Zhang et al, 2014). Shellfish are actually efficient biosentinels for T. gondii in marine environments as they filter water and concentrate oocysts.…”

Section: Sensitivity Analysissupporting

confidence: 65%

Epidemiology associated with the exposure to Toxoplasma gondii in Nunavik’s Inuit population using the 2017 Qanuilirpitaa cross‐sectional health survey

Ducrocq

Ndao

Yansouni

et al. 2021

Zoonoses and Public Health

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Foci of high seroprevalence against Toxoplasma gondii are observed in Nunavik, the Inuit land of Northern Quebec (Canada). Considering the rare occurrence of felids in the region, exposure is suspected to be driven by water-and food-borne transmission routes. Hypotheses were that drinking untreated water from natural sources and eating country food mostly raw increased the risk of exposure to the parasite. Data from 1,300 Inuit participants of the 2017 Nunavik Health Survey were included in three weighted robust Poisson regression models. The effect of three types of exposure variables: (1) water treatment (yes/no) and if country food was mostly eaten raw (yes/no); (2) main source of drinking water (bottled/municipal/natural) and frequency of country food consumption (continuous) and (3) drinking water risk (low/ intermediate/high) and frequency of a raw country food consumption (continuous), on the presence of Toxoplasma antibodies were estimated. Models were adjusted for age, sex and ecological region, with multiple sensitivity analyses being performed.Toxoplasma gondii seroprevalences were consistently correlated with age quadratically, sex (prevalence ratio = PR woman/man ranged from 1.18 to 1.22), ecological region (PR HudsonBay/HudsonStrait ranged from 2.18 to 2.41; PR HudsonBay/UngavaBay ranged from 1.52 to 1.59) and consuming bivalve mollusc/urchin (PR varied from 1.02 to 1.21) across all three models. Each increase of two consumptions per month of beluga (PR ranged from 1.01 to 1.03), seal liver (PR ranged from 1.01 to 1.02) and goose (PR ranged from 1.01 to 1.02) were also associated with seropositivity, albeit more clearly in models 2 and 3, while drinking water mainly from natural (PR of 1.47) or municipal (PR = 1.42) sources compared to bottled water, was correlated with seroprevalence, although results were compatible with the null. Our results suggest that both the oocyst-(mollusc/urchin, drinking water) and cyst-borne (walrus, seal liver and goose) transmission pathways could be present in Nunavik.

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Section: Sensitivity Analysissupporting

confidence: 65%

Epidemiology associated with the exposure to Toxoplasma gondii in Nunavik’s Inuit population using the 2017 Qanuilirpitaa cross‐sectional health survey

Ducrocq

Ndao

Yansouni

et al. 2021

Zoonoses and Public Health

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“…Our data showed an overall prevalence of 1.91% of T. gondii DNA in wild marine snails. This result was similar to that reported in oysters (2.61%) (Cong et al, 2017) and mussels (2.48%) (Cong et al, 2019) in China, but was lower than that detected in oysters and mussels from other countries, such as Turkey (Aksoy et al, 2014), Italy (Putignani et al, 2011), USA (Marquis et al, 2015) and Brazil (Ribeiro et al, 2015). The reasons for these differences can be attributed to variations in the examined species, detection method, sample size, sampling season, and environmental conditions, and geographic differences.…”

Section: Discussionsupporting

confidence: 87%

“…In China, ToxoDB #9 is the main genotype and has been detected in various vertebrate hosts from nearly all provinces of China and in cancer patients (Cong et al, 2015;Wang et al, 2015;Pan et al, 2017;Shwab et al, 2018). Also, our previous study identified ToxoDB #9 in oysters (Cong et al, 2017) and mussels (Cong et al, 2019) in China.…”

Section: Discussionmentioning

confidence: 90%

“…The environmentally resistant oocyst's stage of T. gondii is excreted in the feces of the feline definitive host and can remain viable in the soil or water for years (Lindsay and Dubey, 2009;Dubey, 2010;Lélu et al, 2012). Surface runoff may facilitate the transmission of T. gondii oocysts from the land to the aquatic environment (Conrad et al, 2005;Miller et al, 2008), where oocysts can be retained by filter feeder marine bivalve shellfish such as oysters and mussels (Coupe et al, 2018;Cong et al, 2019). Marine snails are also filter feeders (i.e., can accumulate T. gondii oocysts) and thus can also play a role in the introduction of terrestrial pathogens to marine ecosystems (Krusor et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…T. gondii has been detected in oysters and mussels in many countries (Putignani et al, 2011;Aksoy et al, 2014;Cong et al, 2017Cong et al, , 2019Coupe et al, 2018;Marquis et al, 2019;Monteiro et al, 2019). Ingestion of infected marine shellfish by marine fish, mammals, or humans could ultimately increase the risk of foodborne infection with T. gondii (Jones et al, 2009;Chiang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Molecular prevalence, risk factors and genotypes of Toxoplasma gondii DNA in wild marine snails collected from offshore waters in eastern China

Cong

Elsheikha

et al. 2021

Acta Tropica

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Toxoplasma gondii Infection in Marine Animal Species, as a Potential Source of Food Contamination: A Systematic Review and Meta-Analysis

et al. 2022

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Purpose Many marine animals are infected and susceptible to toxoplasmosis, which is considered as a potential transmission source of Toxoplasma gondii to other hosts, especially humans. The current systematic review and meta-analysis aimed to determine the prevalence of T. gondii infection among sea animal species worldwide and highlight the existing gaps. Methods Data collection was systematically done through searching databases, including PubMed, Science Direct, Google Scholar, Scopus, and Web of Science from 1997 to July 2020. Results Our search strategy resulted in the retrieval of 55 eligible studies reporting the prevalence of marine T. gondii infection. The highest prevalence belonged to mustelids (sea otter) with 54.8% (95% CI 34.21–74.57) and cetaceans (whale, dolphin, and porpoise) with 30.92% (95% CI 17.85–45.76). The microscopic agglutination test (MAT) with 41 records and indirect immunofluorescence assay (IFA) with 30 records were the most applied diagnostic techniques for T. gondii detection in marine species. Conclusions Our results indicated the geographic distribution and spectrum of infected marine species with T. gondii in different parts of the world. The spread of T. gondii among marine animals can affect the health of humans and other animals; in addition, it is possible that marine mammals act as sentinels of environmental contamination, especially the parasites by consuming water or prey species. Graphical Abstract Supplementary Information The online version contains supplementary material available at 10.1007/s11686-021-00507-z.

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Detection and genetic characterization of Toxoplasma gondii in market-sold mussels (Mytilus edulis) in certain provinces of China

Cited by 9 publications

References 19 publications

Epidemiology associated with the exposure to Toxoplasma gondii in Nunavik’s Inuit population using the 2017 Qanuilirpitaa cross‐sectional health survey

Epidemiology associated with the exposure to Toxoplasma gondii in Nunavik’s Inuit population using the 2017 Qanuilirpitaa cross‐sectional health survey

Molecular prevalence, risk factors and genotypes of Toxoplasma gondii DNA in wild marine snails collected from offshore waters in eastern China

Toxoplasma gondii Infection in Marine Animal Species, as a Potential Source of Food Contamination: A Systematic Review and Meta-Analysis

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