Molecular prevalence of bovine noroviruses and neboviruses in newborn calves in Iran
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In this study, bovine enteric caliciviruses (BECs) were detected in 49.4% of a total of 253 stool specimens for diarrheic calves collected from 42 industrial dairy farms from March 2010 to February 2012. Genogroup III norovirus (NoVsGIII) were more prevalent (39.5%) than neboviruses (NBs) (15%), and coinfections were observed in 5.1% of the samples tested. Sequence analysis of the partial polymerase gene from 13 NoVsGIII samples indicated the circulation of both genotype 1 and genotype 2 strains. Among the six NB strains sequenced, five were related to the Bo/Nebraska/80/US strain, while one was related to the Bo/Newbury1/76/UK strain.
This research was performed at the Razi Vaccine and Serum Research Institute (RVSRI) in Iran and National Reference Centre for Enteric Viruses in France. Furthermore, this study was kindly supported by Center for International Scientific Studies and Collaboration (CISSC) and the French Embassy in Tehran, Iran.
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Conflict of interest
The authors declare that no conflict of interest exists.
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