I understand exponential growth thanks. If China was able to take the measures they did on January 23 with only 500 cases in wuhan, nothing amiss in the rest of

I understand exponential growth thanks. If China was able to take the measures they did on January 23 with only 500 cases in wuhan, nothing amiss in the rest of the world, based on their understanding of exponential growth of the disease that is impressive. Every other government had China as a warning and all of them except three have waited to react.