Molecular screening of blue mussels indicated high mid-summer prevalence of human genogroup II Noroviruses, including the pandemic "GII. 4 2012" variants in UK coastal waters during 2013
Braz. j. microbiol
; 49(2): 279-284, Apr.-June 2018. graf
Article
in En
| LILACS
| ID: biblio-889243
Responsible library:
BR1.1
ABSTRACT
Abstract This molecular study is the first report, to the best of our knowledge, on identification of norovirus, NoV GII.4 Sydney 2012 variants, from blue mussels collected from UK coastal waters. Blue mussels (three pooled samples from twelve mussels) collected during the 2013 summer months from UK coastal sites were screened by RT-PCR assays. PCR products of RdRP gene for noroviruses were purified, sequenced and subjected to phylogenetic analysis. All the samples tested positive for NoVs. Sequencing revealed that the NoV partial RdRP gene sequences from two pooled samples clustered with the pandemic "GII.4 Sydney variants" whilst the other pooled sample clustered with the NoV GII.2 variants. This molecular study indicated mussel contamination with pathogenic NoVs even during mid-summer in UK coastal waters which posed potential risk of NoV outbreaks irrespective of season. As the detection of Sydney 2012 NoV from our preliminary study of natural coastal mussels interestingly corroborated with NoV outbreaks in nearby areas during the same period, it emphasizes the importance of environmental surveillance work for forecast of high risk zones of NoV outbreaks.
Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Norovirus
/
Mytilus edulis
/
Genotype
Type of study:
Diagnostic_studies
/
Prevalence_studies
/
Risk_factors_studies
/
Screening_studies
Limits:
Animals
Country/Region as subject:
Europa
Language:
En
Journal:
Braz. j. microbiol
Journal subject:
MICROBIOLOGIA
Year:
2018
Document type:
Article
Affiliation country:
United kingdom