Back to Search
Start Over
A Model to Detect Autochthonous Group 1 and 2 Brazilian Vaccinia virus Coinfections: Development of a qPCR Tool for Diagnosis and Pathogenesis Studies
- Source :
- Viruses, Viruses; Volume 10; Issue 1; Pages: 15, Viruses, Vol 10, Iss 1, p 15 (2017)
- Publication Year :
- 2017
-
Abstract
- Vaccinia virus (VACV) is the etiological agent of bovine vaccinia (BV), an emerging zoonosis that has been associated with economic losses and social effects. Despite increasing reports of BV outbreaks in Brazil, little is known about the biological interactions of Brazilian VACV (VACV-BR) isolates during coinfections; furthermore, there are no tools for the diagnosis of these coinfections. In this study, a tool to co-detect two variants of VACV was developed to provide new information regarding the pathogenesis, virulence profile, and viral spread during coinfection with VACV-BR isolates. To test the quantitative polymerase chain reactions (qPCR) tool, groups of BALB/c mice were intranasally monoinfected with Pelotas virus 1—Group II (PV1-GII) and Pelotas virus 2—Group I (PV2-GI), or were coinfected with PV1-GII and PV2-GI. Clinical signs of the mice were evaluated and the viral load in lung and spleen were detected using simultaneous polymerase chain reactions (PCR) targeting the A56R (hemagglutinin) gene of VACV. The results showed that qPCR for the quantification of viral load in coinfection was efficient and highly sensitive. Coinfected mice presented more severe disease and a higher frequency of VACV detection in lung and spleen, when compared to monoinfected groups. This study is the first description of PV1 and PV2 pathogenicity during coinfection in mice, and provides a new method to detect VACV-BR coinfections.
- Subjects :
- 0301 basic medicine
Male
viruses
lcsh:QR1-502
Hemagglutinin (influenza)
Virulence
Cattle Diseases
Hemagglutinins, Viral
Vaccinia virus
Biology
Polymerase Chain Reaction
lcsh:Microbiology
Virus
Article
law.invention
03 medical and health sciences
chemistry.chemical_compound
Mice
law
Virology
medicine
Vaccinia
Animals
mice model
Polymerase chain reaction
Mice, Inbred BALB C
Coinfection
Zoonosis
qPCR
coinfection
virus diseases
Viral Load
medicine.disease
030104 developmental biology
Infectious Diseases
chemistry
biology.protein
Cattle
Viral load
Brazil
Subjects
Details
- ISSN :
- 19994915
- Volume :
- 10
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Viruses
- Accession number :
- edsair.doi.dedup.....3133be0f5def07c89c2e794c135ce576