Group B Rotavirus Associated with an Outbreak of Neonatal Lamb Diarrhea

Theil, Kenneth W.; Grooms, Daniel L.; McCloskey, Christine M.; Redman, D. R.

doi:10.1177/104063879500700124

Cited by 31 publications

(22 citation statements)

References 12 publications

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“…Group A rotaviruses are the major cause of diarrhoea in humans and animals. Group B rotaviruses have been detected in calves, lambs, piglets and humans and group C rotaviruses in calves, piglets and humans (Ghosh et al, 2007;Medici et al, 2011;Park et al, 2011;Theil et al, 1995). Only group A rotaviruses have been detected in horses (Browning et al, 1991c;Dwyer, 2007).…”

Section: Rotavirus Classificationmentioning

confidence: 99%

Equine rotaviruses—Current understanding and continuing challenges

Bailey

Gilkerson

Browning

2013

Veterinary Microbiology

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Equine rotaviruses were first detected in foals over 30 years ago and remain a major cause of infectious diarrhoea in foals. During this time, there has been substantial progress in the development of sensitive methods to detect rotaviruses in foals, enabling surveillance of the genotypes present in various horse populations. However, there has been limited epidemiological investigation into the significance of these circulating genotypes, their correlation with disease and the use of vaccination in these animal populations. Our knowledge of the pathogenesis of rotavirus infection in foals is based on a limited number of studies on a small number of foals and, therefore, most of our understanding in this area has been extrapolated from studies in other species. Questions such as the concentrations of rotavirus particles shed in the faeces of infected foals, both with and without diarrhoea, and factors determining the presence or absence of clinical disease remain to be investigated, as does the relative and absolute efficacy of currently available vaccines. The answer to these questions may help direct research into the development of more effective control measures.

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Section: Rotavirus Classificationmentioning

confidence: 99%

Equine rotaviruses—Current understanding and continuing challenges

Bailey

Gilkerson

Browning

2013

Veterinary Microbiology

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“…These viruses are subdivided into seven antigenically distinct groups designated A through G (Estes, 2001). Most of rotaviruses detected in clinical specimens of domestic animals belong to group A (Theil et al, 1995). Ovine rotaviruses, in contrast to the globally distributed rotaviruses infecting other livestock, have been reported from few countries like UK, Japan, Morocco, Australia, USA (Chasey and Banks, 1984;Makabe et al, 1985;Fassi-Fehri et al, 1988;Ellis and Daniels, 1988;Theil et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Epidemiology of diarrhoea caused by rotavirus and Escherichia coli in lambs in Kashmir valley, India

Wani

Bhat

Samanta

et al. 2004

Small Ruminant Research

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One hundred and twenty-nine faecal samples, collected over a period of 1 year, from 96 diarrhoeic and 33 non-diarrhoeic lambs aged between 0 and 3 months were examined for presence of rotavirus and Escherichia coli (E. coli). Group A rotavirus was detected in 24 (25%) of diarrhoeic lambs using sandwich enzyme linked immunosorbent assay (ELISA) and ribonucleic acid-polyacrylamide gel electrophoresis (RNA-PAGE). Statistically no significant relation was found between rotavirus infection and age of the lambs. The prevalence of group A rotavirus was more related to meterological changes than age of the lambs as the number of diarrhoeic lambs with rotavirus infection was found to increase in spring months during which temperature and humidity ranged between 7.34 and 28.9 • C and 34.28 and 82.58%, respectively. The migration pattern of ovine rotavirus RNA in PAGE was typical of mammalian group A rotaviruses. O25, O26, O30, O43, O75, O76, O102, O113, O132, O153 and O157 E. coli serogroups were isolated from diarrhoeic lambs positive for rotavirus infection while as O157 serogroups of E. coli were isolated from diarrhoeic lambs without rotavirus infection. O8, O21, O43, O82, O104, O113, O120, O127, O132 and O139 serogroups, recovered from diarrhoeic faecal samples with or without rotavirus, were positive for congo red dye binding activity. O88, O113, O157 and O168 serogroups were isolated from non-diarrhoeic faecal samples out of which O88 and O168 were congo red positive. None of the lambs without diarrhoea carried rotavirus infection. Group B rotavirus infection commonly reported in diarrhoeic lambs outside India was not detected in any of the faecal samples screened.

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“…The present results confirm a remarkable role of Group A Rotavirus in lambs. Several studies worldwide have reported isolation of Group A and Group B Rotavirus in lambs, with a prevalence ranging from 1% to 40% (Theil et al, 1995;Wani et al, 2004;Khafagi et al, 2010;Gazal et al, 2011), whilst in clinically healthy lambs prevalence of antibodies against Rotavirus in blood serum samples may reach up to 40% (Bridger, 2008). In other animal species, pathogenicity of rotaviruses varies, depending mainly on the viral strain and the immunological status of the host, with outbreaks caused by the virus being a frequent feature of the disease (Galindo-Cardiel et al, 2011;Alkan et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Dissemination of intestinal pathogens between lambs and puppies in sheep farms

Chatzopoulos

Sarrou

Vasileiou

et al. 2016

Small Ruminant Research

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a b s t r a c tObjectives of the present work were (i) to confirm pathogens implicated in cases of diarrhoea in newborn and young lambs in sheep farms in Greece and (ii) to investigate a possible relation in dissemination of pathogens between lambs and dogs present in the farm. Work was carried out in 22 sheep farms, with (i) flock size over 150 animals, (ii) presence of clinical signs of diarrhoea in lambs in the flock and (iii) close and continuous contact and movement of shepherd dogs within the animal shed of each farm. Faecal sample collection from lambs was performed within 48 h of onset of clinical signs and prior to administration of any antimicrobial or antiparasitic medication to lambs. Faecal samples were also collected from puppies in the farm. In total, samples were collected from 126 lambs and 58 puppies. Samples were processed by using established techniques for isolation of bacteria, detection of viruses and observation of protozoan oocycts. Escherichia coli isolates obtained during the study, were tested for antimicrobial resistance against a variety of antimicrobial agents. In total, 236 bacterial isolates were recovered from faecal samples of lambs and 165 isolates from faecal samples of puppies. E. coli was the most frequently isolated microorganism: 104 isolates from lambs and 109 isolates from puppies were recovered. Other bacteria isolated were Enterobacter spp., Proteus spp., Klebsiella spp., (lambs and puppies), Clostridium perfringens, Citrobacter freundi, Salmonella enterica subsp. diarizonae (only lambs) and Streptococcus spp. (only puppies). Group A Rotavirus was detected in samples from lambs (2.5%) and Parvovirus in samples from puppies (5%). Cryptosporidium spp. oocysts were observed in samples from lambs and puppies. This is the first report of isolation of S. enterica subsp. diarizonae and of detection of Rotavirus from lambs in Greece. Rates of E. coli isolates from puppies resistant to antimicrobial agents were, in general, smaller than respective rates in isolates from lambs. Two pairs of isolates from the same farm (one from a lamb and one from a puppy) with identical patterns of resistance to antimicrobial agents were detected, which provides some evidence in support of a hypothesis that members of each pair might possibly have been spread from one animal species to the other.

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Group B Rotavirus Associated with an Outbreak of Neonatal Lamb Diarrhea

Cited by 31 publications

References 12 publications

Equine rotaviruses—Current understanding and continuing challenges

Equine rotaviruses—Current understanding and continuing challenges

Epidemiology of diarrhoea caused by rotavirus and Escherichia coli in lambs in Kashmir valley, India

Dissemination of intestinal pathogens between lambs and puppies in sheep farms

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