Dr. Vasudevan Namboothiri, Principal, Amrita School of Ayurveda, said that most people believe that public health is associated with allopathic medicines. But that is a wrong notion. Earlier, it was strictly associated with ayurvedic concept of health. The highlight of ayurveda is that medicines are not prescribed for a healthy man to acquire immunity. He was speaking in a seminar conducted by World Ayurveda Foundation, Ministry of Ayush and Rajiv Gandhi Centre for Biotechnology in Thiruvananthapuram.