Spread of infection calculator - to measure the rate of infection, and to estimate how fast the virus will spread or how much population in total may get affected by the contagious virus in a particular period of time. The Yesterday's and Today's count are being used in this calculation to find the rate of infection spread. How fast the infection will occur or how much population will get get affected by the spread is calculated from the virus spread rate. Spread of infection calculator is very useful to estimate the the population to take the precautionary measures to avoid the spread as soon as possible.