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Approaches in Poultry, Dairy & Veterinary Sciences

Newcastle Disease Virus Respiratory and Digestive Viral Load Distribution Comparison

  • Open or CloseOrsi MA1,3*, Peixoto JM1, Zaroni MMH1, Camillo SCA1, Domingues CS1, Reischak D1, Gouvêa MV1, Freitas TRP2 and Arns CW3

    1Federal Laboratory of Animal and Plant Health and Inspection-São Paulo (LFDA-SP), Campinas, São Paulo, Brazil

    2Federal Laboratory of Animal and Plant Health and Inspection-Minas Gerais (LFDA-MG), Pedro Leopoldo, Minas Gerais, Brazil

    1,3 Department of Genetic, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Campinas,SP, Brazil

    *Corresponding author:Maria Angela Orsi, Department of Genetic, Evolution,Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil

Submission: January 04, 2021;Published: March 05, 2021

DOI: 10.31031/APDV.2021.08.000683

ISSN : 2576-9162
Volume8 Issue2

Abstract

Newcastle disease (ND) is one of most devastating disease of domestic and wild bird. Brazilian active and passive epidemiological surveillance have been implemented to avoid the Newcastle Disease Virus (NDV) infection risk. The present study was performed comparing the respiratory and digestive viral load distribution from apathogenic positive samples obtained from active surveillance and with the frequency through qPCR positive results from these swabs. The results show a higher load of NDV detected in respiratory samples and some swabs were positive only for cloaca demonstrating as both sampling as the molecular screening corroborate to improve the knowledge the NDV infection characteristics in the nature.

Keywords:Newcastle disease virus; Diagnosis; Active surveillance; qPCR

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