Modified Eccentric Connectivity Index and Polynomial of Antiviral Drugs used to Combat Viral Diseases of Graphs

The eccentric connectivity index of a graph is defined as the sum of the products of eccentricity with the degree of vertices over all vertices of the graph, and the modified eccentric connectivity index of a graph is defined as the sum of the products of eccentricity with the total degree of neighbouring vertices over all vertices of the graph. In this paper, we find the eccentric connectivity index and modified eccentric connectivity index, and their respective polynomial versions, for antiviral drugs.