Rotavirus A and D circulating in commercial chicken flocks in southeastern Brazil

Rotavirus (RV) outbreaks can cause significant economic losses in the livestock and poultry industries. Stool samples were collected from asymptomatic laying and broiler chickens from commercial poultry farms in the states of Rio de Janeiro and Espírito Santo in southeastern Brazil for detection of...

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Bibliographic Details
Published in:Veterinary research communications 2024-04, Vol.48 (2), p.743-748
Main Authors: Dias, Juliana B. L., Pinheiro, Mariana S., Petrucci, Melissa P., Travassos, Carlos E. P. F., Mendes, Gabriella S., Santos, Norma
Format: Article
Language:English
Subjects:
Animals
Biomedical and Life Sciences
Brazil - epidemiology
Chickens
Epidemiology
Genotype
Genotypes
Life Sciences
Livestock
Phylogeny
Poultry farming
Reverse transcription
Rotavirus
Rotavirus - genetics
Rotavirus Infections - epidemiology
Rotavirus Infections - veterinary
Sequence analysis
Veterinary Medicine/Veterinary Science
Viruses
Zoology
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Summary:Rotavirus (RV) outbreaks can cause significant economic losses in the livestock and poultry industries. Stool samples were collected from asymptomatic laying and broiler chickens from commercial poultry farms in the states of Rio de Janeiro and Espírito Santo in southeastern Brazil for detection of RV species A and D (RVA and RVD, respectively) by reverse transcription polymerase chain reaction. RV was detected in 10.5% (34/325) of samples: 22 (64.7%) were positive for RVA and nine (26.5%) for RVD, while three (8.8%) exhibited coinfections with both viruses. Sequence analysis of a VP6 fragment from seven RVA-positive samples identified the I11 genotype in all samples. Information regarding avian RV epidemiology is still scanty, despite the high prevalence of RV infections in several bird species and subsequent economic impact. Consequently, monitoring infections caused by avian RVs, especially in commercial birds, is essential not only to provide new and relevant information regarding the biology, epidemiology, and evolution of these viruses, but also to facilitate the implementation of preventive measures.
ISSN:0165-7380
1573-7446
DOI:10.1007/s11259-023-10246-3