Dr. Rao, Ph.D, worked as professor of Microbiology, Parasitology, Immunology , Pharmacology and Epidemiology in many universities, many medical colleges in India, China, Nepal, Libya, and Philippines. Currently he is working as professor of Microbiology, Parasitology, Immunology and Dean of Student Affairs at Avalon University School of Medicine, Curacao, Netherland Antilles. Dr. Rao has more than 44 years of teaching and research experience. Supervised 4 students for Ph.D, 4 students for M.Phil, 4 students for pre M.Phil degrees. 3 students submitted their Ph.D thesis to Acharya Nagarjuna University, Guntur, Andhra Pradesh, India and waiting for viva examination and degree. Authored 18 text books. Currently USMLE, text books,(CLINICAL Microbiology and CLINICAL Pharmacology) are in press 3 Universities appointed as their advisor and 3 universities honored with fellow ships. Presented 18 full length papers exclusively during 2015 to 2016 in different international journals. Accepted as organizing committee member for 3 international conferences in 2016. Invited Key note speaker and speaker for many conferences, universities and colleges. The Royal Society United kingdom awarded me three fellowships 2016 for my current advanced research in Medicine. Dr Rao is post doctoral supervisor too.