Covid is an unprecedented epidemic in human history. Many nations are now having a hard time controlling the epidemic. However, people can protect themselves in the following ways. First, ALWAYS remember to wear a mask. Whether it's going to the supermarket, going to throw trash or traveling, don't forget to wear a mask. Next, always carry a dry hand sanitizer. After going to the supermarket, after talking to a stranger, you should wash your hands immediately, avoid bringing your hands to your eyes, nose or mouth. Also, remember not to bite your nails. Do not go out frequently. Children should stay home and out of contact with many people. Only go out when you need to buy food or go to work. Go to the nearest medical facility when there are signs of cough, fever, difficulty breathing, this will make it easier to localize the place and avoid the spread in a timely manner.