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

Fernandes, Leíse Gomes; Pimenta, Carla Lauise Rodrigues Menezes; Pituco, Edviges Maristela; Brasil, Arthur Willian de Lima; Azevêdo, Sérgio Santos de

doi:10.5433/1679-0359.2016v37n4p1927

Cited by 4 publications

(8 citation statements)

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“…Furthermore, studies done in Brazil using serology identified seropositivity to infectious disease agents including BoHV-1 (Barbosa, Brito, & Alfaia, 2005;Fernandes, Pimenta, Pituco, Brasil, & Azevedo, 2016), bovine parainfluenza virus type 3, BPIV-3 (Gonçalves et al, 2003), BRSV (Driemeier et al, 1997), and BVDV (Flores et al, 2005;Wageck Canal, Strasser, Hertig, Masuda, & Peterhans, 1998) and M. bovis (Pretto et al, 2001). Additionally, there is the isolation of M. bovis (Pretto et al, 2001), while few studies from Brazil have investigated only BRSV by immunohistochemistry, IHC (Brasil et al, 2013;Peixoto et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Mycoplasma bovis and viral agents associated with the development of bovine respiratory disease in adult dairy cows

Oliveira

Pelaquim

Flores

et al. 2019

Transbound Emerg Dis

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Section: Introductionmentioning

confidence: 99%

Mycoplasma bovis and viral agents associated with the development of bovine respiratory disease in adult dairy cows

Oliveira

Pelaquim

Flores

et al. 2019

Transbound Emerg Dis

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“…This association can be attributed to other variables, such as if the animals were purchased at agricultural fairs or not [34]. The animals purchased at fairs was identified as a risk factor in buffaloes, in the Paraíba state, highlighting the importance of performing a sanitary control and serological diagnosis in the purchase of animals, to avoid introduction of infected animals in the herds [8].…”

Section: Bovine Herpesvirus Type 1 (Bohv-1)mentioning

confidence: 99%

“…It is known that the transmission of BoHV-1 can occur through contaminated aerosols and fomites [16] and by contact with respiratory, ocular, and reproductive secretions [9]. In buffaloes, in Paraíba, the presence of sites with water points was a risk factor, probably related to indirect transmission by contaminated water ingestion; these animals have a habit of bathing in mud puddles or water points and urinating and defecating, there being ingestion of contaminated water in these places [8].…”

Section: Bovine Herpesvirus Type 1 (Bohv-1)mentioning

confidence: 99%

“…This result may be associated with the ability of BVDV to cause immunosuppression in animals, facilitating the maintenance of BoHV-1 in herds [13]. In a study carried out in buffalo herds, in Paraíba and Pará state, respectively, a co-infection was observed between BVDV and BoHV-1 [8,35].…”

Section: Bovine Herpesvirus Type 1 (Bohv-1)mentioning

confidence: 99%

“…These diseases present a varied distribution in buffaloes, with prevalence ranging from 11.4% [12] to 84.2% [4] for BVDV and from 30.5% [30] to 100% for bovine herpesvirus type-1 (BoHV-1) [23,29]. In Brazil, studies conducted in different regions indicate prevalences ranging from 8.8% [8] to 52.7% [15] for BVDV and 14.7% [15] to 87.3% for BoHV-1 [3].…”

Section: Introductionmentioning

confidence: 99%

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Occurrence of Bovine Viral Diarrhea (BVDV) and Bovine Infectious Rhinotracheitis (IBR) Virus Infections in Buffaloes in Pernambuco state - Brazil

Soares

Silva

Borges

et al. 2017

Acta Scientiae. Vet.

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Background:Buffaloes are susceptible to viral infections, often associated with pathologies of importance in cattle breeding. Among the numerous infectious diseases, Bovine Viral Diarrhea (BVDV) and Bovine Infectious Rhinotracheitis (IBR) have a negative impact on buffalo creations. This study aimed to detect the occurrence of bovine viral diarrhea virus (BVDV) and infectious bovine rhinotracheitis (IBR) virus infections in buffaloes in Pernambuco state, Brazil. Materials, Methods & Results:For this purpose, serum samples were obtained from 244 buffaloes on eight properties distributed in six municipalities. The search for anti-BVDV and -bovine herpesvirus type-1 (BoHV-1) antibodies was performed using the virus neutralization technique. To analyze the association between the serological status of BoHV-1 infection and aspects of hygienic-sanitary and reproductive management, an investigative questionnaire with objective questions was used. In total, 97.9% (239/244) of buffaloes had anti-BVDV antibodies and 56.1% (137/244) had anti-BoHV-1 antibodies. Co-infection was observed in 55.3% (135/244) of buffaloes. The distribution of antibody occurrence in buffaloes by properties ranged from 90.5% to 100.0% for BVDV and from 4.8% to 100% for BoHV-1. It was not possible to perform an association analysis for BVDV infection; however, in that for BoHV-1 infection, the following variables exhibited a significant association: an extensive breeding system (P < 0.001), open herd (P = 0.029), lack of reproductive rest (P = 0.029), natural mating in females with reproductive disorders (P < 0.001), exploration type (P = 0.0014), presence of wild animals (P < 0.001), and lack of cleaning facilities (P = 0.008). Discussion: The occurrence of anti-BVDV antibodies in this study was 97.9% this was higher than those reported in other country's regions. The results of the present study demonstrate a high occurrence of anti-BVDV antibodies in each of the properties in Pernambuco state, demonstrating that the animals have contact with infection sources, due to the large number of positive animals. Indeed, it is likely that there is at least one PI animal in every herd. It was observed that 100% of the properties possessed at least one positive animal. The high number of positive animal properties may be related to the absence of biosecurity measures; a subclinical BVDV infection can occur which the owners cannot identify it, as it is not common the adoption of a reproductive program in the region. The occurrence of the anti-BoHV-1 antibody in this study was 56.1%. In other states, both lower and higher prevalences were reported compared to this study. The high number of properties with positive animals may be related to several factors, including the ability of the virus to remain latent, thus introducing a single animal infected with BoHV-1 sufficient for infection spread and perpetuation in buffaloes. It is believed that the introduction of infected animals and the lack of disease knowledge by the producers may have been responsible for...

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Diagnosis and phylogenetic analysis of bovine viral diarrhea virus in cattle (Bos taurus) and buffaloes (Bubalus bubalis) from the Amazon region and Southeast Brazil

et al. 2022

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Bovine viral diarrhea virus (BVDV) is a highly infectious pathogen that affects bovines worldwide leading to great economic impact. Although Brazil has the largest commercial cattle population throughout the world and an increasing buffalo breeding industry, the country has no control or eradication program for BVDV. In this perspective, the aim of this study was to evaluate the occurrence of BVDV in cattle and buffaloes from two Brazilian states. Four different ELISA tests were performed and confirmed by virus neutralization testing (VNT). The presence of BVDV antibodies in the serum or plasma from 77 cattle from six herds (ELISA-1 and ELISA-4) and from 89 buffaloes from three herds (ELISA-1 through ELISA-4) was detected. Extraction of viral RNA was performed from the serum or plasma samples for the detection of BVDV by RT-PCR analysis. Amplified nucleotide sequences were used to construct a phylogenetic tree. In cattle, ELISA-1 detected 49.4% of seropositive animals, while ELISA-4 detected 37.7%. In buffaloes, ELISA-1 failed to detect any seropositive animals, while ELISA-2 and ELISA-3 detected 20.2% of seropositive animals, and ELISA-4 detected 21.3%. Eight of the nine herds tested had seropositive animals. The rate of PCR positive animals was 6.5% in cattle and 9% in buffaloes. Subtype 1d was found in cattle, and subtypes 1d and 1f were found in buffaloes. This is the first-time subtype 1f has been reported in Brazil. The absence of a control and eradication program seems to be favoring the spread of BVDV in the Brazilian herds. In addition, the improvement of diagnostic strategies for BVDV in buffaloes are required.

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

Cited by 4 publications

References 9 publications

Mycoplasma bovis and viral agents associated with the development of bovine respiratory disease in adult dairy cows

Mycoplasma bovis and viral agents associated with the development of bovine respiratory disease in adult dairy cows

Occurrence of Bovine Viral Diarrhea (BVDV) and Bovine Infectious Rhinotracheitis (IBR) Virus Infections in Buffaloes in Pernambuco state - Brazil

Diagnosis and phylogenetic analysis of bovine viral diarrhea virus in cattle (Bos taurus) and buffaloes (Bubalus bubalis) from the Amazon region and Southeast Brazil

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