First of all, the medical level in the United States is high, but the medical system is not good. Many people have no way to treat diseases, so they simply die. This is also the fundamental reason why Obama began to reform the medical system as soon as he took office. Although the United States has the most advanced medical equipment and the most powerful medical technology in the world, the cause of this epidemic is still very difficult.
Secondly, the U.S. government paid little attention to the epidemic, but was very concerned about the collapse of the U.S. stock market. After all, Trump was a businessman before, so he was worried about economic problems. On the contrary, he is not very new to the American epidemic, but only proposed a $50 billion emergency fund.
Finally, there are not many medical equipment in the United States, which was emphasized when Congress asked officials of the National Security Department. After all, in the face of such a big infectious disease, it is necessary to reserve medical materials such as masks and protective clothing. Although there have been shortcomings in China, many state-owned enterprises have stepped forward and quickly filled the gap in medical materials. But the United States does not have such opportunities and resources.