Kalupahana A.W., Budhia S., Kalupahana R.S., Blacklaws B.A., Analysis of T cell receptor  variable (TCR V) region gene expression in sheep with maedi-visna virus (MVV) infection. Proceedings of the Peradeniya University Research Sessions, Sri Lanka. Vol 10, 2005.

Matibag G.C., Kamigaki T., Kumarasiri P.V.R., Wijewardana T.G., Kalupahana A.W., Dissanayake D.R.A., De Silva D.D.N., Gunawardena G.S.P.De.S., Obayashi Y., Kanda K., Tamashiro H., Knowledge, attitudes, and practices survey of rabies in a community in Sri Lanka. Environmental Health and Preventive Medicine, 2007 Vol 12(2): 84-89

Kalupahana A.W. A review on zoonotic disease situation in Sri Lanka. Proceedings of the 2nd international symposium on infectious diseases and health sciences. Post Graduate Institute of Science, University of Peradeniya, Sri Lanka. 26th- 27th July 2007. Page 36-39.

Kalupahana A.W., Pushpakumara P.G.A., Kalupahana R.S., Application of PCR based molecular diagnostic technique for the detection of Bovine Herpes Virus-1 antigen in cattle semen. Proceedings of the 60th Scientific Sessions of the Sri Lanka Veterinary Association, 2008 l 55: 27.

Matibag G.C., Ditangco R.A., Kamigaki T., Wijewardana T.G., Kumarasiri P.V.R., Kalupahana A.W., Dissanayake D.R.A., De Silva D.D.N., Gunawardena G.S.P.De.S., Obayashi Y., Kanda K., Tamashiro H., Community-based evaluation of health-seeking behaviour of people with animal bite injuries in a district of Sri Lanka. Journal of International Health, 2008 Vol 23(3): 173-179

Kalupahana A.W., De Silva, D.P.N., Application of polymerase chain reaction (PCR) technique to detect Koi Herpes Virus (KHV) infection in carps. Proceedings of the Peradeniya University Research Sessions, 2009, Sri Lanka. Vol 14, Part 1, Page 68-69.

Wijewardana T.G., Arulkanthan A., Gunawardena G.S.P.De S., Dissanayake D.R.A., Kalupahana A.W., Jagoda S.S.S.De S., Laboratory procedures for fish disease diagnosis. Published by centre for aquatic animal disease diagnosis and research (CAADDR). Chapter 8 Virology, 2009, ISBN 978-955-0185-00-9.

Kamathewatta, K.I., Salgadu, M.A., Ananthakumar, N., Bandara, T.P.M.S.D., Ariyarathna, H.S., Kalupahana, A.W., Jinadasa, H.R.N., Detection of canine parvo virus (CPV) in a selected sample of dogs in Sri Lanka by PCR. Book of abstracts of the third annual conference and scientific sessions of Sri Lankan society for microbiology (SSM) 2014 Vol 2: 43

Premalal, T.W.K., Fuward R.M., Kalupahana, A.W.,Jinadasa, H.R.N., Rapid detection of canine parvovirus by PCR in dogs with gastroenteritis. Book of abstracts of the fifth annual conference and scientific sessions of Sri Lankan society for microbiology (SSM) 2016 Vol 4: 4.

Kalupahana AW., (2017) Characterization of orthoreoviruses isolated from American crow (Corvus brachyrhynchos) winter mortality events in eastern Canada. 2017. On line published PhD thesis, University of Prince Edward Island, Canada. Available at

Kalupahana A.W., Kibenge M.J.T., Ojkic D., Wadowska D., McBurney S., Kibenge F.S.B., Orthoreoviruses isolated from incidents of wild bird mortality in eastern Canada. 2017 Genebank submission Accession Nos. MF350293-MF350297.

Rathnayake S.P., Weeraddana G., Mutusinghe D., Yoshimatsu K., Arikawa J., Gamage C.D., Kalupahana A.W. Sero-epidemiological survey of hantavirus infection among rodents captured in Kandy and Peradeniya areas in Sri Lanka. Proceedings of the 70th Annual Scientific Session of the Sri Lanka Veterinary Association, 2018. Sri Lanka Vet. J. 2018,65(2): 51.

Rathnayake R.M.I.M., Dhanapala D.M.P.M., Jagoda S.S.S. De S., Kalupahana A.W. Detection of megalocytivirus from a freshwater giant gourami (Osphronemus gouramy) in Sri Lanka. Proceedings of the 71st Annual Scientific Session of the Sri Lanka Veterinary Association, 2019.

Rathnayake S.P., Udayanga N.W.B.A.L., Gunathilaka P.A.D.H.N., Kalupahana A.W. Prevalence of animal bite injuries reported to base hospital Kayts, Northern Province of Sri Lanka and health seeking behaviour of patients: a retrospective cohort study. Proceedings of the 71st Annual Scientific Session of the Sri Lanka Veterinary Association, 2019.

de Silva N., Kalupahana A.W. Diagnosis of helicopter chick disease caused by avian orthoreovirus in a large broiler farm in the North western province of Sri Lanka. Proceedings of the 71st Annual Scientific Session of the Sri Lanka Veterinary Association, 2019.

Kibenge F.S.B., Wang Y., Kibenge M.J.T., Kalupahana A., McBurney S., Avian Virology. Chapter 6 – Avian Reovirus. Page 175-206. Caister Academic Press, UK. 2019. ISBN 978-1-912530-10-6

R.M.I.M. Rathnayake and A.W. Kalupahana. Infectious bursal disease – A review. Sri Lanka Vet. J. 2019, 66(2): 1-11.

R.M.I.M. Rathnayake, N. De Silva, A.W. Kalupahana. Two incidents of infectious bursal disease in small holder poultry layer farms despite vaccination. Presented at the 19th Annual Scientific Session of the World Poultry Science Association Sri Lanka branch held on 7th May 2021.

Rasika Jinadasa, Sayani Ghosh, Simon Hills, Thushini Premalal, Ushani Atapattu, Manohari Fuward, Wasantha Kalupahana, Magdalena Dunowska. Genomic variability of canine parvovirus from a selected population of dogs and cats in Sri Lanka. Pathogens 2021, 10: 1102

D.P.H. Wijesekera, W.D.M. Perera, G.D.R.K. Perera, S.S.S. de S. Jagoda, A.W. Kalupahana. Morphological identification of fungi isolated from poultry layer feed in the North-Western Province of Sri Lanka. Proceedings of the 73rd Annual Scientific Session of the Sri Lanka Veterinary Association, 2021.

B.M.Y.I. Basnayake, G.G.T. Nisansala, P.I.J.B. Wijewickrama, U.S. Weerathunga, N.K. Jayasekera, A.W. Kalupahana, R.S. Kalupahana, A. Silva-Fletcher, K.S.A. Kottawatta. Investigation of antimicrobial resistance in Escherichia coli isolated from wild animals at Hambegamuwa: Sri Lanka. Proceedings of the 73rd Annual Scientific Session of the Sri Lanka Veterinary Association, 2021.

D.M.P.M. Dhanapala, R.S. Kalupahana, A.W. Kalupahana, D.P.H. Wijesekera, K.S.A. Kottawatta, N.K. Jayasekera, A. Silva-Fletcher, S.S.S. de S. Jagoda. High occurrence of multi-drug resistance among Gram-negative bacterial pathogens in freshwater ornamental fish. Proceedings of the 73rd Annual Scientific Session of the Sri Lanka Veterinary Association, 2021.

R.M.I.M. Rathnayake, R.M.N.P.K. Ranathunga, A.W. Kalupahana, G.S.P.de S. Gunawardena, S.S.S. de S. Jagoda. Parasitic Dinoflagellate, Hematodinium spp. as a cause of heavy mortality in cultured mud crab (Scylla serrata) in Sri Lanka. Proceedings of the 73rd Annual Scientific Session of the Sri Lanka Veterinary Association, 2021.

D.M.P.M. Dhanapala, R.M.I.M. Rathnayake, D.M.S.G. Dissanayaka, R.R.M.K.K. Wijesundera, A.W. Kalupahana, S.S.S. de S. Jagoda. Detection of infectious spleen and kidney necrosis virus (ISKNV) infection in freshwater ornamental fish from two provinces of Sri Lanka. Proceedings of the 73rd Annual Scientific Session of the Sri Lanka Veterinary Association, 2021.

R.M.I.M. Rathnayake, D.M.P.M. Dhanapala, K.L.N. Ananda, A.W. Kalupahana, S.S.S. de S. Jagoda. A retrospective analysis of ornamental fish submissions to a University-based fish disease diagnostic laboratory. Proceedings of the 73rd Annual Scientific Session of the Sri Lanka Veterinary Association, 2021.

R.M.I.M. Rathnayake, S.S.S. de S. Jagoda, A.W. Kalupahana. Phylogenetic analysis of infectious bursal disease virus isolated from three provinces of Sri Lanka. Book of abstracts of the 10th annual conference and scientific sessions of Sri Lankan society for microbiology (SSM) 2021 Vol 9: 18.

Pavithra M. Dhanapala, Ruwani S. Kalupahana, Anil W. Kalupahana, D.P.H. Wijesekera, Sanda A. Kottawatta, Niromi K. Jayasekera, Ayona Silva-Fletcher, S.S.S. de S. Jagoda. Characterization and antimicrobial resistance of environmental and clinical Aeromonas species isolated from fresh water ornamental fish and associated farming environment in Sri Lanka. Microorganisms 2021, 9, 2106.

R.M.I.M. Rathnayake, A.W. Kalupahana. Molecular detection of lumpy skin disease virus in Sri Lanka – First report. Proceedings of Peradeniya University International Research Sessions, 2021, Sri Lanka. Vol 23, Page 191.

D.M.P.M. Dhanapala, R.S. Kalupahana, A.W. Kalupahana, D.P.H. Wijesekera, K.S.A. Kottawatta, N.K. Jayasekera, A. Silva-Fletcher, S.S.S. de S. Jagoda. Antimicrobial resistance of Aeromonas spp. isolated from freshwater ornamental fish farming environment in Sri Lanka. Proceedings of Peradeniya University International Research Sessions, 2021, Sri Lanka. Vol 23, Page 327.

B.M.Y.I. Basnayake, G.G.T. Nisansala, P.I.J.B. Wijewickrama, U.S. Weerathunga, K.W.M.Y.D. Gunasekara, N.K. Jayasekera, A.W. Kalupahana, R.S. Kalupahana, A. Silva-Fletcher, K.S.A. Kottawatta. Understanding the diversity of antimicrobial resistance among wild animals, livestock and associated environment in a rural ecosystem in Sri Lanka. International Journal of Medical and Health Sciences 2021, Vol 15(5).

B.M.Y.I. Basnayake, G.G.T. Nisansala, P.I.J.B. Wijewickrama, K.W.M.Y.D. Gunasekara, N.K. Jayasekera, A.W. Kalupahana, R.S. Kalupahana, A. Silva-Fletcher, K.S.A. Kottawatta. Investigation of antimicrobial resistance in Escherichia coli isolated from soil and water at Kosgama Sri Lanka. Presented at the Rufford foundation second in-country conference – Sri Lanka. Organized by Bio Conservation Society Sri Lanka (BCSL), 27th to 29th January, 2022 at Oak Ray Regency, Deveni Rajasinghe Mawatha, Kandy.