Bovine viral diarrhea virus infections in pigs: why is this situation important for Brazilian herds?

Author(s)

Henrique Meiroz de Souza Almeida ^[1] ; Igor Renan Honorato Gatto ^[2] ; Anne Caroline Ramos dos Santos ^[3] ; Daniele Araujo Pereira ^[4] ; Karla Alvarenga Nascimento ^[5] ; Thaís Gasparini Baraldi ^[6] ; Marina Lopes Mechler ^[7] ; Luís Guilherme de Oliveira ^[8]

Affiliation

^[1] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Ciências Agrárias e Veterinárias. Department of Preventive Veterinary Medicine and Animal Reproduction - Brasil

^[2] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Ciências Agrárias e Veterinárias. Department of Preventive Veterinary Medicine and Animal Reproduction - Brasil

^[3] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Ciências Agrárias e Veterinárias. Department of Preventive Veterinary Medicine and Animal Reproduction - Brasil

^[4] UNESP. Faculdade de Ciências Agrárias e Veterinárias. Departament of Veterinary Clinic and Surgery - Brasil

^[5] UNESP. Faculdade de Ciências Agrárias e Veterinárias. Departament of Veterinary Clinic and Surgery - Brasil

^[6] UNESP. Faculdade de Ciências Agrárias e Veterinárias. Departament of Veterinary Clinic and Surgery - Brasil

^[7] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Ciências Agrárias e Veterinárias. Department of Preventive Veterinary Medicine and Animal Reproduction - Brasil

^[8] UNESP. Faculdade de Ciências Agrárias e Veterinárias. Departament of Veterinary Clinic and Surgery - Brasil

• Document type: Journal article
• Source: Arq. Inst. Biol.; v. 84, 2018-02-01.

Abstract

ABSTRACT: Swine can be infected by the bovine viral diarrhea virus (BVDV) under natural conditions. For this reason, further information and divulgation are needed regarding the pathogenicity of this virus in swine. This infection is practically unknown in the realm of pig farming, and, as it shares some similarities with the classical swine fever virus (CSFV), its diagnosis becomes a challenge for official sanitary programs. Studies have shown the absence of clinical signs in piglets and reproductive problems in sows due to BVDV infections. There is little research on the prevalence, risk factors, preventive measures and control of BVDV in pigs around the world. And in Brazil, the data is practically non-existent. At the time of diagnosis, comparing the most efficient laboratory tests such as virus neutralization, ELISA, RT-PCR, and immunofluorescence so as to minimize the risk of cross serological reactions when dealing with a persistent or transient infection, can be an important tool. Moreover, the practical implications for CSFV eradication programs are a main reason for the development of further research against this infection. Therefore, this paper aims to review various aspects of BVDV infection in pigs, and how this information can be important for Brazilian herds. (AU)

• FAPESP's process: 14/13590-3 - Epidemiological study of occurrence and transmission of bovine viral diarrhea virus in swine
• Grantee: Luís Guilherme de Oliveira
• Support Opportunities: Regular Research Grants