Dias S, Wickramarachchi W T A and Udagama-Randeniya P (2010). Strain-specific and strain-transcending immune responses against Plasmodium vivax merozoite surface protein-1p42 in Sri Lanka. 14^th International Congress of Immunology, Kobe Japan. pp.i32

Premaratne P H and Udagama-Randeniya P V (2010). Strain specific and strain transcending antibody responses directed against Plasmodium vivaxDuffy Binding Protein II (PvDBPII) in Sri Lanka. Allergy & Immunology Society of Sri Lanka, 5^th Biennial Scientific Sessions, pp 15 (won second prize for presentations in Basic Immunology)

Amarasekara A D D S,Fernando C,Wijerathna S,Udagama-Randeniya P V (2010). Preliminary study on reactive oxygen species (ROS) as a marker of male infertility for Sri Lankan males. 43rd Annual Scientific Sessions of the Sri Lanka College of obstetricians and Gynecologists, August 2010. Page 51.

Amarasekara A D D S, Wijerathna S, Fernando C and Udagama-Randeniya P V (2010). Preliminary study on reactive oxygen species (ROS) as a marker of infertility for Sri Lankan males. Allergy & Immunology Society of Sri Lanka, 5^th Biennial Scientific Sessions, pp 27. (won best poster prize)

Obeysekara M,Fernando C,Wijerathna S, Udagama-Randeniya P V (2010). Macrophage migration inhibitory factor (MIF) inseminal fluid and it’s role in male infertility: a pilot study in Sri Lankan men. 43rd Annual Scientific Sessions of the Sri Lanka College of obstetricians and Gynecologists, August 2010. Page 50.

Dias S, Wickramarachchi W T A  and Udagama-Randeniya P (2010). Comparison of antibody responses to asexual stage vaccine candidate antigens of Plasmodium vivax merozoite surface protein-1(MSP-1) and Apical Membrane Antigen-1(PvAMA-1)in Sri Lanka. Allergy & Immunology Society of Sri Lanka, 5^th Biennial Scientific Sessions, pp 14 (won first prize for presentations in Basic Immunology)

Kodippili K S W, Ratnasooriya W D, Premakumara G A S, Udagama-Randeniya, P V (2010). An Investigation of the antimalarial activitiy of Artemisia vulgaris leaf extract in a rodent model. Proceedings of the 30^th Annual sessions of Institute of Biology, Sri Lanka. Pp 12.

Kodippili K S W, Ratnasooriya W D, Premakumara G A S, Udagama-Randeniya, P V (2010). An Investigation of the antimalarial activitiy of Artemisia vulgaris leaf extract in a rodent model. Proceedings of the 30^th Annual sessions of Institute of Biology, Sri Lanka. Pp 12.

Madushani, W A N, Wickramasinghe, D D and Udagama-Randeniya, P V (2010). A pilot study on the impacts of selected heavy metals on the immune system and reproductive biology of Euphlyctis hexadactylus (Ranidae: Naninae) under natural conditions. Proceedings of the 30^th Annual sessions of Institute of Biology, Sri Lanka. Pp 19.

Dias S and Udagama-Randeniya P V (2009). The genetic diversity of P. vivax merozoite surface protein-1 p42 (PvMSP-1p42) in Sri Lanka. Proceedings of the 29^th Annual sessions of Institute of Biology, Sri Lanka. pp 23.

Dias S, Somarathna M, Manamperi M and Udagama-Randeniya P(2009).Reactivity ofsynthetic peptides of the Plasmodium vivax Apical Membrane Antigen-1(PvAMA-1) domain II with natural antibodies in sera of P. vivax patients from Sri Lanka. Allergy & Immunology Society of Sri Lanka, 4^th Biennial Scientific Sessions, pp24.

De Silva C and Udagama-Randeniya P (2009). Preliminary study on the association of HLA-DRB1 subtypes with disease manifestation and susceptibility in rheumatoid arthritis patients in Sri Lanka. Allergy & Immunology Society of Sri Lanka, 4^th Biennial Scientific Sessions, pp 26.

Dias S and Udagama-Randeniya P (2009). Genetic diversity in the Plasmodium vivax C-terminal 42 kDa region     of merozoite surface protein-1(PvMSP-1p42) in Sri Lanka. 65^th Annual sessions of Sri Lanka Association of Advancement of Science, December 2009.

Dharmasena N B, Samaratunge U, Ratnasooriya W D and Udagama-Randeniya P V (2009).Evaluation of anti-rheumatoid arthritic activity of a novel herbal decoction using the collagen induced arthritis model.Allergy & Immunology Society of Sri Lanka, 4^th Biennial Scientific Sessions, pp22

Dharshika K Y P,Weerasinghe I S and Udagama-Randeniya P V (2008). Some entomological aspects and physico-chemicalcharacteristics of the breeding habitats of Aedes aegyptiand Aedes albopictus in a dengue high risk area in the Colombo district, Sri Lanka.Proceedings of the 64^th Annual sessions of the Sri Lanka Association for the Advancement of Science.

Dias S, Gunasekera A M and Udagama-Randeniya P V (2008). Sequence analysis of the apical membrane antigen -1 of Plasmodium vivax in Sri Lankan isolates. Proceedings of the 28^th Annual sessions of Institute of Biology, Sri Lanka. pp 42.

Dias S, Wickramarachchi T, Munasinghe Gunasekera A and Udagama-Randeniya P V (2008). Molecular ecology of vivax malaria: genetic diversity of a malaria vaccine candidate antigen, Apical Membrane Antigen -1, in Sri Lanka. National Annual Scientific Sessions of the Ecological Medicine Study Group.

Premaratne P H, Wickramarachchi W T A, Illeperuma R J and Udagama-Randeniya P V (2008). Immune response toPlasmodium vivax in malaria endemic and non-endemic areas in Sri Lanka. National Annual Scientific Sessions of the Ecological Medicine Study Group.

Nafla N F and Udagama-Randeniya P V (2008). Ectoparsites and intestinal parasites of imported fresh water ornamental fishes in Sri Lanka. Annual Research Symposium, University of Colombo, pp 127.

Goonetilleke S, De Silva V, Rajapaksa G, Wijerathne L S, and Udagama-Randeniya P V (2008). Determination of serum IgA and rheumatoid factor IgA-RF in association with clinical manifestations in a population of rheumatoid arthritis patients in Sri Lanka.Third Annual Scientific Sessions of the Institute of Biochemistry,Molecular Biology & Biotechnology, University of Colombo, pp 20.

Premaratne P H, Aravinda R, Manamperi A and Udagama-Randeniya P V (2008). Analysis of genetic polymorphism of Plasmodium vivax Duffy Binding Protein ligand domain of Sri Lankan isolates. Proceedings of the 64^th Annual sessions of Sri Lanka Association for the Advancement of Science.

Rajapakse R P G K , Aravinda R B, Wijesinghe H, Wijayarathne L S and Udagama-Randeniya P V (2008). A preliminary study to assess the C-reactive protein and rheumatoid factor profile of a population of rheumatoid arthritis patients in Sri Lanka. Annual Research Symposium, University of Colombo, Pp 129.

Premaratne P H,Dias K V G S, Handunnetti S M, Yazdani S, Chitins C and Udagama-Randeniya P V (2007). Patterns of anti-PVRIIIgG and IgG isotypes to Plasmodium vivax Duffy Binding Protein in Sri Lanka.Proceedings of the 63 rd Annual sessions of Sri Lanka Association for the Advancement of Science, pp 13

Pamoda B Ratnaweera, Mayuri R Wijesinghe and Preethi V Udagama-Randeniya. Parasitic association of endemic Mus mayori(Sri Lankan spiny rat) in Kanneliya rain forest, Sri Lanka (2007).Proceedings of the 63^rd  Annual sessions of Sri Lanka Association of Advancement of Science, pp 81.

Dissanayake M U, Dias K V G S, Premaratne P H, Wickramarachchi W T A, Handunnetti, S M, Longacre S and Udagama-Randeniya P V (2007). Natural antibody responses to Plasmodium vivax Merozoite Surface Protein -1 and 4 in Sri Lanka. Second Annual Scientific Sessions of the Institute of Biochemistry, Molecular Biology & Biotechnology, University of Colombo, pp 18.

W D Ratnasooriya, C Jayasinghe and P V Udagama-Randeniya. Investigation ofantimalarial activity of black tea brew of Camellia sinensis in mice. Proceedings of the 27^th Annual sessions of Institute of Biology, Sri Lanka.     pp 39.

Dissanayake M U, Dias K V G S, Premaratne P H, Longacre S and Udagama-Randeniya P V (2007). Immunoepidemiology of Plasmodium vivax Merozoite Surface Protein-4 (PvMSP-4) in Sri Lanka. Second Annual Scientific Sessions of the Institute of Biochemistry, Molecular Biology & Biotechnology, University of Colombo, pp 17.

Ratnaweera P B, Wijesinghe M R and Udagama-Randeniya P V (2008). Ecto and intestinal parasites of wild dwelling Rattusrattusin Sri Lanka. Thirteenth International Forestry and Environment Symposium, Sri Lanka, pp 63

De Silva V,Rajapaksa G, Wijerathne L S, and Udagama-Randeniya P V (2007). Determination of Rheumatoid factor profiles and its association clinical manifestations and socio economic factors of rheumatoid arthritis patients in Sri Lanka. Proceedings of the 63^rd Annual sessions of Sri Lanka Association of Advancement of Science, pp 17.

Premaratne, P H, Dias, K V G S, Wicramarachchi, W T A, Perera, K L R L, Bandara S,Handunetti, S M, Yazdani, S, Chitnis, C and Udagama-Randeniya, P V (2006). Specificity of the antibody response to conformational and linear epitopes of Plasmodium vivaxDuffy Binding Protein in Sri Lanka. 3 rd
Academic Sessions, Allergy and Immunology Society of Sri Lanka.