Should the domestic buffalo (Bubalus bubalis) be considered in the epidemiology of Bovine Herpesvirus 1 infection?

Scicluna, Maria Teresa; Caprioli, Andrea; Saralli, G.; Manna, Giuseppe; Barone, Antonino; Cersini, Antonella; Cardeti, G.; Condoleo, Roberto; Autorino, Gian Luca

doi:10.1016/j.vetmic.2010.02.016

Cited by 32 publications

(38 citation statements)

References 21 publications

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“…The presence of watering points was a risk factor for BoHV-1, which points to the possibility of indirect transmission by the ingestion of contaminated water, once that these animals have the habit of bathing in small mud puddles or watering points and also to urinate and defecate whilst ingesting water in these places. Scicluna et al (2010) detected the presence of active viral particles in feces of buffaloes positive for BoHV-1, which may represent an elimination route of the agent and a source of environmental contamination.…”

Section: Resultsmentioning

confidence: 96%

“…BoHV-1 has been reported to adapt itself to other species (THIRY et al, 2006) and the buffaloes' susceptibility has been demonstrated both in isolation and in viral identification, as in serological studies (SCICLUNA et al, 2010;MONTAGNARO et al, 2014). BVDV has a worldwide distribution and is endemic in the majority of the bovine populations, causing economic losses mainly of reproductive origin (GIRALDO et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Risk factors associated with BoHV-1 and BVDV seropositivity in buffaloes (Bubalus bubalis) from the State of Paraiba, Northeastern Brazil

Fernandes¹,

Pimenta²,

Pituco³

et al. 2016

SCA

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This study aimed to identify the risk factors associated with Bovine Herpesvirus Type 1 (BoHV-1) and Bovine Viral Diarrhea Virus (BVDV) infections in buffaloes in the State of Paraíba, Northeastern Brazil, using 136 female buffaloes ≥ 24 months old from 14 herds. For the serological diagnosis of the BoHV-1 and BVDV infections, the virus-neutralization test (VN) was used and in each herd, an epidemiological questionnaire was applied in order to obtain data to be used in the risk factor analysis. Of the 136 animals 86 (63.2%) were positive for BoHV-1 and 12 (8.8%) for BVDV. The presence of watering points (odds ratio = 17.68; 95% CI = 3.74 -83.04) was identified as risk factor for BoHv-1, and animal purchasing was a risk factor for both BoHV-1 (odds ratio = 68.64; 95% CI = 12.28 -383.73) and BVDV (odds ratio = 3.64; 95% CI = 1.04 -12.76). The results from the present study showed an evidence of the presence of BoHV-1 and BVDV infections in buffaloes from the State of Paraíba, Northeastern Brazil. It is suggested that control and prevention measures should be adopted, such as the use of diagnostic tests prior to animal purchasing and the use of vaccines to avoid the introduction of infected animals into the herds and the consequent dissemination of the infections, minimizing economic losses. Key words: BoHV-1. BVDV. Buffaloes. Northeastern Brazil. Risk factors. Serology. ResumoEste estudo teve como objetivo identificar os fatores de risco associados à infecções pelo Herpesvírus Bovino Tipo 1 (BoHV-1) e Vírus da Diarreia Viral Bovina (BVDV) em búfalos no Estado da Paraíba, Nordeste do Brasil, utilizando 136 búfalas com idade ≥ 24 meses procedentes de 14 rebanhos. Para o diagnóstico sorológico das infecções por BoHV-1 e BVDV, empregou-se o teste de virusneutralização (VN) e em cada rebanho foi aplicado questionário epidemiológico para obtenção de dados a serem utilizados na análise de fatores de risco. Dos 136 animais 86 (63,2%) foram positivos para BoHV-1 e 12 (8,8%) para BVDV. Presença de aguadas (odds ratio = 17,68; IC 95% = 3,74-83,04) foi identificada como fator de risco para o BoHV-1, e compra de animais foi um fator de risco para BoHV-1 (odds ratio = 68,64; IC 95% = 12,28-383,73) e BVDV (odds ratio = 3,64; IC 95% = 1,04-12,76). Os resultados do presente estudo evidenciaram a presença das infecções por BoHV-1 e BVDV em búfalos do Estado da Paraíba, Nordeste do Brasil. Sugere-se que que medidas de controle e prevenção sejam adotadas,

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Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Risk factors associated with BoHV-1 and BVDV seropositivity in buffaloes (Bubalus bubalis) from the State of Paraiba, Northeastern Brazil

Fernandes¹,

Pimenta²,

Pituco³

et al. 2016

SCA

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“…have established their own programs in which only cattle are considered as a reservoir of BoHV-1, despite documentation for specific antibody seroconversion against glycoprotein B (gB) and glycoprotein E (gE) in water buffalo (Peshev & Christova 2000;De Carlo et al 2004;Scicluna et al 2010). As reported by Nogarol et al (2014), cross reaction between BuHV-1 and BoHV-1 on serological tests can occur, including gold standard serum neutralization (SN).…”

Section: Introductionmentioning

confidence: 99%

Prevalence of antibodies against Bubaline herpesvirus (BuHV-1) among Mediterranean water buffalo (Bubalus bubalis) with implications in buffalo trade

Caruso

Prato

Ingravalle

et al. 2016

Veterinary Quarterly

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Background: Both Bovine herpesvirus (BoHV-1) and Bubaline herpesvirus (BuHV-1) have been reported to cross the species barrier. Antibody seroconversion in glycoprotein E (gE) blocking ELISA during BuHV-1 infection has been documented. Recent diagnostic efforts have focused on the development and application of discriminatory tests to distinguish between infections with BoHV-1 and BuHV-1. Objective: To evaluate the impact and distribution of these two infections in water buffalo farms in two regions (Piedmont (n D 3) and Campania (n D 10), Italy) where infectious bovine rhinotracheitis control programs have been implemented. Animals and methods: Sampling was carried out on 13 buffalo farms comprising 1089 animals using specific gE-indirect ELISA's test able to discriminate among BoHV-1 and BuHV-1 infections. Results: 59.0% of animals reacted positive to ELISA (irrespective of whether BoHV-1 or BuHV-1 antigen was used) and 86.4% of these were reactive to BuHV-1 only, whereas 11.8% showed absorbance values for both antigens and were classified as inconclusive. There was a statistically significant age-related difference in BuHV-1 infection rates but not in overall individual (47% vs. 58%) or herd prevalence (100% vs. 90%) of infection between the two regions. Conclusion: The low percentage of sera reactive to BoHV-1 (1.8%, 12/643) indicates that BuHV-1 may be the main circulating alphaherpesvirus infection in Mediterranean water buffalo in the two study areas. Since Bubalus bubalis is included in Directive 64/432/EEC on animal health problems affecting intra-community trade in bovine animals, diagnostic testing with nonspecific ELISA for BoHV-1 infection in buffalo may yield false-positive reactions. This scenario could lead to economic losses and hamper buffalo trade and movement, particularly for reproduction purposes.

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“…Bubaline herpesvirus 1 (BuHV1) belongs to the cluster of ruminant α herpesviruses related to bovine herpesvirus 1 (BoHV1) (Julien Thiry and others 2006). The latter has only been associated with subclinical disease in water buffalo ( Bubalus bubalis ) (St George and Philpott 1972, Scicluna and others 2010). However, Amoroso and others (2013) detected BuHV1 viral DNA on an aborted water buffalo fetus by means of PCR.…”

Section: Introductionmentioning

confidence: 99%

Cattle are a potential reservoir of bubaline herpesvirus 1 (BuHV1)

Maidana

Delgado²,

Vagnoni³

et al. 2016

Veterinary Record Open

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In the present work, controlled experimental infection and transmission studies in domestic cattle (Bos taurus) and water buffaloes (Bubalus bubalis) were carried out to study the in vivo behaviour of bubaline herpesvirus 1 (BuHV1). Two bovine and two buffalo calves were infected with BuHV1 (20287N isolate) by intranasal aerosolisation. Two sentinel cattle did not receive the virus challenge, but were housed with infected buffaloes to evaluate horizontal transmission. All experimentally inoculated animals showed viral infection and respiratory clinical signs. BuHV1 experimentally infected calves showed intermittent viral excretion between 2 days and 18 days postinfection (dpi) with a maximum titre of excretion of 106 TCID50/ml and moderate rhinitis between 2 dpi and 20 dpi. BuHV1 experimentally inoculated buffaloes showed mild respiratory signs, which consisted mainly of serous nasal secretions during the infection period. Sentinel calves showed mucosal specific IgG1 antibodies at seven days postcontact. Viral DNA was detected by PCR and sequencing in both buffaloes and sentinel calves, which could be associated with latency. In conclusion, this study showed the susceptibility of cattle to BuHV1 after both experimental infection and contact with infected buffaloes. These data increase the scarce knowledge on the pathogenesis in natural host and the susceptibility of cattle to BuHV1 experimental infection.

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Should the domestic buffalo (Bubalus bubalis) be considered in the epidemiology of Bovine Herpesvirus 1 infection?

Cited by 32 publications

References 21 publications

Risk factors associated with BoHV-1 and BVDV seropositivity in buffaloes (Bubalus bubalis) from the State of Paraiba, Northeastern Brazil

Risk factors associated with BoHV-1 and BVDV seropositivity in buffaloes (Bubalus bubalis) from the State of Paraiba, Northeastern Brazil

Prevalence of antibodies against Bubaline herpesvirus (BuHV-1) among Mediterranean water buffalo (Bubalus bubalis) with implications in buffalo trade

Cattle are a potential reservoir of bubaline herpesvirus 1 (BuHV1)

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