Table 5 List of viruses used in this study and its sources
| Virus | Source |
|---|---|
| Canine distemper virus (CDV) | Nobivac Puppy DP, Intervet |
| Measles virus (MeV) | Serum Institute of India LTD, Pune |
| Newcastle disease virus (NDV) | Department of Vet. Pathology and Microbiology, UPM |
| Feline leukemia virus (FeLV) | Department of Vet. Pathology and Microbiology, UPM |
| Feline coronavirus (FCoV) | Department of Vet. Pathology and Microbiology, UPM |