Seroprevalence and risk factors associated with bovine herpesvirus 1 and bovine viral diarrhea virus in North-Eastern Mexico

Abstract

Bovine herpesvirus 1 (BoHV-1) and bovine viral diarrhea virus (BVDV) are well known etiological agents of cattle that produce important economic losses due to reproductive failures and calf mortality, as well as enteric and respiratory disease. Tamaulipas is located northeast of Mexico, an important cattle production and the principal exporter of calf and heifer to the United States. The objectives of this study were to estimate the seroprevalence of BoHV-1 and of BVDV, and to determine the effects of risk factors on these infections. Blood samples of cattle from 57 farms from rural districts of Tamaulipas were collected. The samples were tested for antibodies against BoHV-1 and BVDV using commercial ELISA kits. Data on potential risk factors were obtained using a questionnaire administered to the farmer at the time the blood samples were taken. The seroprevalences for BoHV-1 and BVDV were 64.4% and 47.8%, respectively. In the logistic regression analysis, the significant risk factors were rural district, herd size and cattle introduced to the farm. This study confirms the high seroprevalence of BoHV-1 and BVDV in unvaccinated cattle in Tamaulipas, Mexico. The results of this study could be used for the development of BoHV-1 and BVDV prevention and control program in North-Eastern, Mexico.

Seroprevalence and risk factor associated with respiratory viral pathogens in dual-purpose cattle of Aguachica, Rio de Oro, and La Gloria municipalities in Cesar department, Colombia

“…This result agrees with those reported by Segura-Correa et al . [31], who demonstrate statistical differences between the rural districts in North Eastern of Mexico. The variation of seroprevalence in different regions may be due to differences in cattle population age, cattle density, herd size, housing systems, biosecurity, disease control measures, management practices, and type of breeding of the animals, which in general could be important risk factors in transmission and persistence of BVDV [31,32].…”

Seroprevalence and risk factors associated with bovine herpesvirus 1 in Northeast of Algiers

“…Bovine herpesvirus 1 (BoHV-1) is a virus, which belongs to the family Herpesviridae, subfamily Alphaherpesvirinae, and the genus Varicellovirus [1]. BoHV-1 causes important cattle diseases such as infectious bovine rhinotracheitis (IBR) and infectious pustular vulvovaginitis (IPV) in cows and infectious pustular balanoposthitis (IPB) in bulls worldwide [2–4]. BoHV-1 infection causes mild to acute or chronic severe respiratory disease complex with a variety of apparent clinical manifestations.…”

“…BoHV-1 infection causes mild to acute or chronic severe respiratory disease complex with a variety of apparent clinical manifestations. However, reproductive losses are the main economical significances of BoHV-1 infection [4–6]. The symptoms of inflammation in respiratory and genital organs and abortion are among the clinical signs of BoHV-1 [7].…”

“…It is possible to reduce the economic losses of clinical diseases using vaccines, but this seems not the case for the prevalence of BoHV-1 infection [4]. It is difficult to make an accurate estimation of the real economic impact of the BoHV-1 because of the absence of clinical signs in latently infected animals.…”

Soroprevalência e fatores de risco associados ao herpesvírus bovino tipo 1, vírus da diarréia viral bovina em vacas leiteiras mestiças não vacinadas e Neospora caninum no município de Uberlândia

“…Em Minas Gerais está à mesorregião do Triângulo Mineiro, onde se encontra o município de Uberlândia-MG , um dos destaques no agronegócio(SILVA et al, 2012). México de 64,5% (ROMERO-SALAS et al, 2013) e 64,4%(SEGURA-CORREA et al, 2016) e no Irã de 58,74%(BAHARI et al, 2013). Presença de anticorpos contra o BVDV verificado em propriedades da Turquia de 58,2% (GÜR, 2011), Arábia Saudita de 26% (MAHMOUD; ALLAM, 2013) e Irlanda do Norte de 98,4%(COWLEY et al, 2014).…”