As we can all witness, the spread of COVID-19 is beginning to get out of control in many states in the U.S. and the same critical situation has already happened in China and Europe. Therefore, we, the students in the Columbia University need to turn up our voice and demand what needed to be done for our own protection. Please, sign this petition to ask school to replace in-person lecture with online class in the CU campus because the most effective method of fighting this serious disease is proved to be self-isolation. Thank you.