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- Title
Assessment of Gastroenteric Viruses in Marketed Bivalve Mollusks in the Tourist Cities of Rio de Janeiro, Brazil, 2022.
- Authors
Cantelli, Carina Pacheco; Tavares, Guilherme Caetano Lanzieri; Sarmento, Sylvia Kahwage; Burlandy, Fernanda Marcicano; Fumian, Tulio Machado; Maranhão, Adriana Gonçalves; Silva, Emanuelle de Souza Ramalho Ferreira da; Horta, Marco Aurélio Pereira; Miagostovich, Marize Pereira; Yang, Zhihui; Leite, José Paulo Gagliardi
- Abstract
This study investigated the prevalence and genetic diversity of gastroenteric viruses in mussels and oysters in Rio de Janeiro, Brazil. One hundred and thirty-four marketed bivalve samples were obtained between January and December 2022. The viral analysis was performed according to ISO/TS 15216, and the screening revealed the detection of norovirus GII/GI (40.3%), sapovirus (SaV; 12.7%), human mastadenovirus (7.5%), and rotavirus A (RVA; 5.9%). In total, 44.8% (60) of shellfish samples tested positive for one or more viruses, 46.7% (28/60) of the positive samples tested positive for a single viral agent, 26.7% (16) tested positive for two viral agents, 8.3% (5) for three viral agents, and 13.3% (8) for four viral agents. Additionally, three mussel samples were contaminated with the five investigated viruses (5%, 3/60). Norovirus GII showed the highest mean viral load (3.4 × 105 GC/g), followed by SaV (1.4 × 104 GC/g), RVA (1.1 × 104 GC/g), human mastadenovirus (3.9 × 103 GC/g), and norovirus GI (6.7 × 102 GC/g). Molecular characterization revealed that the recovered norovirus strains belonged to genotypes GII.2, GII.6, GII.9, GII.17, and GII.27; SaV belonged to genotypes GI.1 and GIV.1; RVA to genotypes G6, G8, P[8]-III, and human mastadenovirus to types F40 and F41. The GII.27 norovirus characterized in this study is the only strain of this genotype reported in Brazil. This study highlights the dissemination and diversity of gastroenteric viruses present in commercialized bivalves in a touristic area, indicating the potential risk to human health and the contribution of bivalves in the propagation of emerging pathogens.
- Subjects
RIO de Janeiro (Brazil); BRAZIL; NOROVIRUSES; CITIES &; towns; MOLLUSKS; GENETIC variation; VIRUS diversity; VIRAL load; BIVALVES
- Publication
Viruses (1999-4915), 2024, Vol 16, Issue 3, p317
- ISSN
1999-4915
- Publication type
Article
- DOI
10.3390/v16030317