Journal of Immunology and Immunopathology
  • Year: 2021
  • Volume: 23
  • Issue: 2spl

Improved Loop Mediated Isothermal Amplification (LAMP) Assay for Visual, Rapid and Sensitive Detection of Canine Parvovirus Antigenic Types

  • Author:
  • Vikas Gupta1, Tapas Kumar Mohapatra3, Soumendu Chakravarti2, Vishal Chander3, Sukdeb Nandi3
  • Total Page Count: 9
  • Published Online: Mar 9, 2022
  • Page Number: 135 to 143

1Assistant Director, CCS National Institute of Animal Health, Baghpat-250609, Uttar Pradesh, India

2M.V.Sc. Student, Centre of Animal Disease Diagnosis and Research, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India

3Scientist, Division of Biological Products, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122,Uttar Pradesh, India

4Scientist, Centre of Animal Disease Diagnosis and Research, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India

5Principal Scientist; Centre of Animal Disease Diagnosis and Research, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India

*Corresponding author email id: sukdebnandi@yahoo.in

Online published on 9 March, 2022.

Abstract

Canine parvoviral enteritis remains one of the dreaded enteric viral diseases of dogs. Rapid detection of the etiological agent, Canine parvovirus-2 (CPV-2) is required for managemental intervention and initiating therapeutic and control measures. The present study describes Loop Mediated Isothermal Amplification (LAMP) using loop primers, validating the assay on all the circulating CPV-2 antigenic types and testing in 120 suspected clinical samples. The novel LAMP assay was completed within 30-45 min at 64°C in a water bath. Analytical sensitivity of the LAMP assay was 100 times more than conventional PCR and was comparable to real-time PCR. LAMP was able to detect 62 positive samples while conventional PCR could detect only in 51 samples. The developed LAMP provides a simple, rapid, cost-effective, sensitive, specific method of detection of CPV-2 infection in dogs in clinical settings.

Keywords

LAMP, Canine parvovirus (CPV), CPV antigenic types