Virulent, 'virulent' is highly poisonous or malignant: venomous: acrimonous. 'Virulence' as a ground for exclusion from inheritance is treated from an entirely different angle in the Hindu religious and legal texts. The general emphasis in those contexts was of the competence of a man to perform his social and religious obligations and no word has been used in these texts which could be referred to as the corresponding Sanskrit word for 'virulent', Swarajya Lakshmi v. Dr. G.G. Padma Rao, AIR 1974 SC 165: (1974) 1 SCC 58: (1974) 2 SCR 97. [Hindu Marriage Act (25 of 1955), s. 13(i) (iv)]
Virulent, is not used by medical men in describing any particular form of leprosy,Swaraj Laxmi v. G.G. Padmarao, AIR 1974 SC 165.
Means malignant and contagious. It is also incurable, Laxmibai v. Hotchand, (1981) 2 MP WN 165.