Identification of The Phases of The Spread of Covid-19 in Maluku Province with Richards Curve

Nanang Ondi (Department of Mathematics, Pattimura University)
Yopi Andry Lesnussa (Department of Mathematics, Pattimura University)
Francis Yunito Rumlawang (Department of Mathematics, Pattimura University)

International Journal of Computing Science and Applied Mathematics-IJCSAM
Vol. 7 No. 2 (2021)

Richards Curve is an extension of the Logistics Curve which was first discovered in 1959 and is a type of sigmoid curve where in the sigmoid curve there are 3 growth phases, namely the logarithmic phase, the linear phase and the aging phase. This research aims to identify and determine the phase of the spread of COVID-19 in Maluku province with the Richards curve. From the calculation results obtained that the initial phase of the spread occurred on March 23 - July 5 2020, the peak phase of the spread occurred on July 6 - October 22 2020, the final phase of the peak of the spread occurred on October 23, 2020 - April 14, 2021 and began to enter the final phase of the spread on April 15, 2021.