Assistant Professor (Research) – SASTRA University, Thanjavur, India – (July 2013-November 2014)
Research Associate – Manipal University, Manipal, India – (July 2012 – October 2012)
Guest Lecturer in Microbiology – State Institute of Medical Education & Technology’s Colleges, Ernakulam – (October 2011 – April 2012)
Senior Research Fellow – Department of Neurovirology, National Institute of Mental Health and Neurosciences, Karnataka, India – (December 2008 – December 2010)
Junior Research Fellow – Department of Neurovirology, National Institute of Mental Health and Neurosciences, Karnataka, India – (December 2006 – December 2008)
Junior Research Fellow – Molecular Biology & Bioinformatics Unit, Vector Control Research Centre, Puducherry, India – (November 2005 – November 2006)
Ullas PT, Desai A, Madhusudana SN. Immunogenicity and efficacy of a plasmid DNA Rabies vaccine incorporating Myd88 as a genetic adjuvant. Clin Exp Vaccine Res 2014;3(2):202-11.
Madhusudana SN, Bhavana MV, Ullas PT, Subha S, Ashwin BY, Babu PS. Development and evaluation of a new immunohistochemistry-based test for the detection of Rabies virus neutralizing antibodies. Hum Vaccin Immunother 2014;10(5):Epub 2014 Feb 27.
Ullas PT, Madhusudana SN, Desai A, Sagar BKC, Jayamurugan G, Rajesh YBRD et al. Enhancement of immunogenicity and efficacy of a plasmid DNA rabies vaccine by nanoformulation with a fourth-generation amine-terminated poly(ether imine) dendrimer. Int J Nanomedicine 2014;9:627-34.
Madhusudana SN, Subha S, Ullas PT, Ashwin YB. Evaluation of direct rapid immunohistochemical test (dRIT) for rapid diagnosis of rabies in animals and humans. Virologica Sinica 2012;27(5):299-302.
Masthi RNR, Raviprakash D, Gangasagara SB, Sriprakash KS, Ashwin BY, Ullas PT, Madhusudana SN. Rabies in a blind patient: confusion after corneal transplantation. The Nat Med J India 2012;25(2):83-84.
Ullas PT, Desai A, Madhusudana SN. Rabies DNA vaccines: Current Status and Future. World J Vaccines 2012(2):36-40.
George SE, Chikkamadaiah R, Durgaiah M, Joshi AA, Ullas PT, Madhusudana SN, Sriram B. Biochemical characterization and evaluation of cytotoxicity of antistaphylococcal chimeric protein P128. BMC Res Notes 2012;5:280.
Ullas PT, Madhusudana SN, Desai A, Jayamurugan G, Rajesh YBRD, Jayaraman N. Dendritic poly(ether imine) based gene delivery vector. Bioconjugate Chem 2011;22(2):115-9.
Madhusudana SN, Sundaramoorthy S, Ullas PT. Utility of Human Embryonic Kidney cell line HEK293 for rapid isolation of fixed and street rabies viruses: comparison with Neuro-2a and BHK-21 cell lines. Int J Inf Dis 2010;14(12):e1067-71.
Ashwathnarayana DH, Madhusudana SN, Sampath G, Sathpathy DM, Mankeshwar R, Ravish HH, Ullas PT et al. A comparative study on the safety and immunogenicity of purified duck embryo vaccine (PDEV, Vaxirab) with purified chick embryo cell vaccine (PCEC, Rabipur) and purified vero cell rabies vaccine (PVRV, Verorab). Vaccine 2009;28(1):148-51.
Sampath G, Madhusudana SN, Sudarshan MK, Ashwathnarayana DH, Mahendra BJ, Ullas PT et al. Immunogenicity and safety study of Indirab: a Vero cell based chromatographically purified human rabies vaccine. Vaccine 2010;28(24):4086-90.