Possibilities of exponential or Sigmoid growth of Covid19 data in different states of India

SUPRIYA MONDAL; Sabyasachi Ghosh

The Covid19 spreading is started from wuhan, China on December 2019 and then within a three months time period this infection spreads almost throughout the world. Therefore, this covid19 infection is declared as pandemic disease by World Health Organization (WHO) [1] . In India, first entry from Wuhan,China is noticed on 30th of January, 2020 [2] . It remain quite gentle up to February and limited within Kerala but from beginning of March, it spread to other states and union territories of India. During the month of March the number of covid19 cases get an exponential growth tendency. On the identification of exponential growth trend and its possible deviation via Sigmoid function [3] for India data has been attempted in our earlier work [4] . Present work can be considered as continuation of earlier investigation. We focus here on the covid19 data of individual states and union territories of India.