ArticleParasitology research2018
First report of Toxoplasma gondii sporulated oocysts and Giardia duodenalis in commercial green-lipped mussels (Perna canaliculus) in New Zealand.
Article in Parasitology research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Toxoplasma gondii Infection in Marine Animal Species, as a Potential Source of Food Contamination: A Systematic Review and Meta-Analysis.Acta parasitologica · 2022Pooled it
- Pooled it
- Bivalve mollusks as sentinels: Molecular detection ofInternational journal for parasitology. Parasites and wildlife · 2026Article
- Depuration Investigation on Parasites and Bacterial Loads in Freshwater Clam (Batissa violacea) and Oyster (Crassostrea gigas) Using a Sand Filter and UV Radiation.Journal of food science · 2026Article
- Fish and shellfish as sentinels of aquatic contamination: Global distribution and One Health implications of zoonoticOne health (Amsterdam, Netherlands) · 2026Review
- Waterborne Protozoan Parasite and Thalassogenic Diseases in Marine Environment: Detection Techniques, Indicators and Public Health Implications.Microorganisms · 2026Review
- Pet Ownership in Aotearoa New Zealand: A National Survey of Cat and Dog Owner Practices.Animals : an open access journal from MDPI · 2023Article
- Review
- Contamination of Soil, Water, Fresh Produce, and Bivalve Mollusks withMicroorganisms · 2022Review
- Zoonotic giardiasis: an update.Parasitology research · 2021Review
- Potential Risk of Three Zoonotic Protozoa (Foods (Basel, Switzerland) · 2020Review
- NematodeInternational journal for parasitology. Parasites and wildlife · 2020Article
- Efficiency of the Q3 lab-on-chip Real Time-PCR platform for detecting protozoan pathogens in bivalve mollusks.Journal of food science and technology · 2019Article
- Molecular Epizootiology ofPathogens (Basel, Switzerland) · 2019Article
- Comparison of PCR assays to detect Toxoplasma gondii oocysts in green-lipped mussels (Perna canaliculus).Parasitology research · 2019Article
- Environmental transmission ofFood and waterborne parasitology · 2019Review
- Public health risks associated with food-borne parasites.EFSA journal. European Food Safety Authority · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pollution of marine ecosystems with the protozoan parasites Toxoplasma gondii, Cryptosporidium spp. and Giardia duodenalis can be studied using bivalve shellfish as biosentinels. Although evidence suggests that these parasites are present in New Zealand coastal waters, the extent of protozoal pollution has not been investigated. This study used optimised molecular methods to detect the presence of Cryptosporidium spp., G. duodenalis and T. gondii in commercially sourced green-lipped mussel (Perna canaliculus), an endemic species found throughout coastal New Zealand. A nested polymerase chain reaction was validated for detection of T. gondii DNA and applied to 104 commercially sourced mussels. Thirteen mussels were positive for T. gondii DNA with an estimated true prevalence of 16.4% using Bayesian statistics, and the presence of T. gondii in mussels was significantly associated with collection during the summer compared with that in the winter (P = 0.003). Consumption of contaminated shellfish may also pose a health risk for humans and marine wildlife. As only sporulated T. gondii oocysts can be infectious, a reverse transcriptase-polymerase chain reaction was used to confirm presence of a sporozoite-specific marker (SporoSAG), detected in four mussels. G. duodenalis assemblage B, known to be pathogenic in humans, was also discovered in 1% mussels, tested by polymerase chain reaction (n = 90). Cryptosporidium spp. was not detected in the sampled mussel haemolymph. Results suggest that New Zealand may have high levels of coastal contamination with T. gondii, particularly in summer months, and that naturally exposed mussels can ingest and retain sporulated oocysts, further establishing shellfish consumption as a health concern.
Indexed as
Identifiers
29550995What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.