Bioaccumulation of animal adenoviruses in the pink shrimp

Abstract

Adenoviruses are among the most promising viral markers of fecal contamination. They are frequently found in the water, sediment and soil of regions impacted by human activity. Studies of the bioaccumulation of enteric viruses in shrimp are scarce. The cities located in the northern coast of the lake systems in Southern Brazil have high urbanization and intensive farming rates, and poor sewage collection and treatment. One hundred (n = 100) Farfantepenaeus paulensis pink-shrimp specimens and 48 water samples were collected from coastal lagoons between June 2012 and May 2013. Water samples were concentrated and the shrimp, mashed. After DNA extraction, samples were analyzed by real time polymerase chain reaction (qPCR) in order to detect and quantify viral genomes. Thirty-five percent of shrimp samples were positive for contamination, predominantly by avian adenoviruses. A total of 91.7% of water samples contained adenoviruses DNA, with the human form being the most frequent. Our results provided evidence of significant bioaccumulation of adenoviruses in shrimp, showing the extent of the impact of fecal pollution on aquatic ecosystems.

Seafood associated human pathogenic non-enveloped viruses

“…Ghalyoun and Alçay (2018) detected adenovirus before the fishing season ended in 46.15% of the musk sample from three separate locations in Istanbul. Luz et al (2015) reported that the findings of the analysis revealed substantial bioaccumulation of adenoviruses in shrimp, demonstrating the magnitude of fecal pollution 's effect on aquatic environments. In 18.6% of shellfish tests from the Norwegian coast, Myrmel et al (2004) have found Adenovirus with more accurate tests in the winter season.…”

“…These viruses have been commonly seen in riversides, coast waters, swimming pool waters, and drinking water supplies all over the world where they may survive until four months (Jiang et al, 2001;Jiang, 2006). Adenovirus prevents environmental deterioration and water treatment rather than other measures of pollution (De Moraes Tavares et al, 2005;Griffin et al, 2008;Luz et al, 2015;Jiang et al, 2007).…”