| Full text | |
| Author(s): |
Affonso, Ingrid Bortolin
[1]
;
de Souza, Andressa
[2]
;
Martini, Matheus Cavalheiro
[3]
;
Aparecida Bianchi dos Santos, Marcia Merces
[4]
;
Spilki, Fernando Rosado
[5]
;
Arns, Clarice Weis
[3]
;
Samara, Samir Issa
[2]
Total Authors: 7
|
| Affiliation: | [1] Univ Estadual Paulista, Dept Med Vet Prevent & Reprod Anim, Programa Posgrad Med Vet, UNESP, Fac Ciencias Agr & Vet, Jaboticabal, SP - Brazil
[2] UNESP, Dept Med Vet Prevent & Reprod Anim, Jaboticabal, SP - Brazil
[3] Univ Estadual Campinas, Inst Biol, UNICAMP, Campinas, SP - Brazil
[4] Univ Fed Juiz de Fora, Dept Parasitol Microbiol & Imunol, UFJF, Juiz De Fora, MG - Brazil
[5] Univ FEEVALE, FEEVALE, Novo Hamburgo, RS - Brazil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | SEMINA-CIENCIAS AGRARIAS; v. 35, n. 5, p. 2539-2549, 2014. |
| Web of Science Citations: | 3 |
| Abstract | |
Bovine respiratory syncytial virus (BRSV) causes important lower respiratory tract illness in calves. According to F and G proteins genetic sequences, three BRSV subgroups have been reported and characterized in several countries, showing differences in its distribution. In Brazil, the virus is widely disseminated throughout the herds and the few characterized isolates revealed the solely occurrence of the subgroup B. This study describes the detection and characterization of an untyped BRSV strain from a twenty-days-old calf from a herd without clinical respiratory disease. Nasal swabs were analyzed by RT-nested PCR for the F and G proteins genes. One sample has amplified the F protein gene. Sequencing and subsequent phylogenetic reconstruction were accomplished, revealing that the strain could not be grouped with any other BRSV subgroups reported. This result may suggest that the BRSV is in constantly evolution, even in Brazil, where the vaccination is not a common practice. More detailed studies about BRSV characterization are necessary to know the virus subgroups distribution among the Brazilian herds to recommend appropriated immunoprophylaxis. (AU) | |
| FAPESP's process: | 10/06950-2 - EPIDEMIOLOGICAL CHARACTERISTICS AND RISKS ASSOCIATED WITH BOVINE RESPIRATORY SYNCYTIAL VIRUS (BRSV)IN CATTLLE OF SÃO PAULO STATE |
| Grantee: | Ingrid Bortolin Affonso Lux Hoppe |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 10/15912-7 - EPIDEMIOLOGICAL CHARACTERISTICS AND RISKS ASSOCIATED WITH BOVINE RESPIRATORY SYNCYTIAL VIRUS (BRSV) IN CATTLE OF SÃO PAULO STATE. |
| Grantee: | Samir Issa Samara |
| Support Opportunities: | Regular Research Grants |