In this bad and scary time of Corona, there is also some rays of hope. America's Moderna company says that its vaccine mRNA-1273 will come soon. Its vaccine proved to be 94.5 percent effective in the test. Moderna hopes to bring two crore doses of the vaccine by the end of this year. Although the company hopes that by next year it will prepare 100 crore doses, but to deliver this medicine to the people, the Moderna company will have to go through several formalities. The company will soon ask the government for permission to use it. Know how the trial of Moderna Vaccine was done for which the whole world was waiting.