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OJVRTM

Online Journal of Veterinary Research©

(Including Medical and Laboratory Research)

Established 1994

ISSN 1328-925X

 

Volume  29 (11): 713-718, 2025.


Detection of canine distemper by PCR of genital, conjunctiva, urine and blood samples.

 

  Amaral HA, Cortez A, Richtzenhain  LJ , Funada MR, Soares RM, Durigon EL, Larsson MHMA.

 

School of Veterinary Medicine and Animal Science and Institute of Biomedical Sciences, University of São Paulo, Brazil.

 

ABSTRACT

 

Amaral HA, Cortez A, Richtzenhain LJ, Funada MR, Soares RM, Durigon EL, Larsson MHMA. Detection of canine distemper by PCR of genital, conjunctiva, urine and blood samples. Onl J Vet Res., 29 (11): 713-718, 2025. We describe method to detect distemper virus in conjunctival and genital swabs, urine and peripheral blood mononuclear cells by reverse-transcription–hemi-nested–polymerase chain reaction (PCR). Samples were taken from 50 dogs with neurological signs over 3 years. Non-vaccinated dogs or those vaccinated more than 50 days before  sample collection were included to exclude false-positives. Fragments of nucleoprotein genes canine distemper virus were detected by hemi-nested PCR in 43 (86%), genital (80%) and conjunctival swabs (74%), urine (74% )and peripheral blood mononuclear cells (68%). Conjunctival and genital swabs, and urine samples provided high detection sensitivity enhanced by testing two clinical samples especially in dogs that had not shown extra-neural signs or those in the convalescent and late stage of canine distemper.

 

Key words: canine distemper; conjuctival swab; dogs; genital swab; hemi-nested-PCR; RT-PCR; urine.


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