The U.S. government's epidemic prevention measures at the beginning of the epidemic only presented external prevention and guidance on epidemic detection, delaying the adoption of sufficiently severe epidemic prevention initiatives domestically, making some parts of the U.S. miss the best time to contain the epidemic. At the same time, the U.S. government also tried to downplay the epidemic in public opinion, comparing the epidemic to the Great Influenza, making the overall awareness and attention of the domestic public to the epidemic low, and even though the U.S. government subsequently tried to add layers and layers to contain the spread of the virus, there was a lot of resistance.