Dr. Hussin A. Rothan, Ph.D. is a Principal Scientist at the Pfizer. Hussin Rothan is an experienced molecular virologist with deep knowledge and unique skills in developing antiviral treatments, investigating virus pathogenesis and drug resistance, developing sophisticated antiviral assays, and 2D and 3D tissue culture systems. As a Principal Scientist at Pfizer, He has significantly contributed to developing Paxlovid, the oral antiviral drug for SARS-CoV-2 infection. He has more than a decade of designing and conducting laboratory-based and animal models-based virology studies on different viruses. He has published more than 80 articles, books, and patents with >8000 citations. He worked at prestigious international institutions, including the University of Malaya, the International Medical University in Malaysia, the University of Sheffield in the United Kingdom, and the University of Maryland and Georgia State University in the United States.