Doctor Khanh is a nemesis of pathogens and disease-causing bacteria, pioneering the development of treatment protocols for hand, foot, and mouth disease that continue to save the lives of hundreds of thousands of children during outbreaks. He has been actively involved in research, teaching, and treating life-threatening infections such as meningitis, encephalitis, typhoid fever, tuberculosis, HIV, and more. Many of his research projects on hand, foot, and mouth disease have been highly esteemed by the scientific community both domestically and internationally.