Absence of norovirus contamination in shellfish harvested and commercialized in the Northeast coast of Brazil
Braz. j. med. biol. res
;
53(11): e9529, 2020. tab, graf
Article
in English
| LILACS, ColecionaSUS
| ID: biblio-1132492
ABSTRACT
Norovirus (NoV) is the main cause of gastroenteritis outbreaks worldwide. Although NoV spreads mainly from person to person, it is estimated that a large proportion of NoV outbreaks are caused by foodborne transmission. Bivalve mollusks are one of the most important foods involved in NoV transmission to humans. Little is known about NoV prevalence in shellfish harvested and commercialized in Brazil. The aim of this study was to map, for the first time, the distribution of NoV contamination in oysters and mussels harvested and commercialized in the coast of Pernambuco state, northeast Brazil. A total of 380 mollusks (260 oysters and 120 mussels) were collected between February and August 2017 either directly from harvesting areas or obtained from beach vendors at 17 sites in Pernambuco. Samples were processed and tested for NoV contamination using a SYBR Green real-time PCR assay. All samples were negative for NoV GI or GII contamination, suggesting a low risk of NoV contamination from this food source during the study period. Additional surveys in different areas of the Brazilian coast are warranted to monitor the risk of NoV infection upon seafood consumption.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Norovirus
Type of study:
Risk factors
Limits:
Animals
/
Humans
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Braz. j. med. biol. res
Year:
2020
Type:
Article
Institution/Affiliation country:
Fundação Oswaldo Cruz/BR
/
National Institute of Allergy and Infectious Diseases/US
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