Test Advisor to the US President Donald trump on national security Robert O’brien gave a positive result for coronavirus. Mr. O’brien was isolated at home and works remotely. According to Bloomberg, Robert O’brien could have been infected at a family event.The White house reported that the risk of infection by the coronavirus of Mr. trump or Vice-President Mike Pence is not. The national security Advisor mild symptoms of mers, said in the White house.Earlier, Donald trump has urged people to wear masks, noting their positive effect in the prevention of the virus. He said that in July, two American vaccine coronavirus will be at the final stage of clinical trials, and four in August.According to the University of Johns Hopkins, USA is in first place in the world in the number of infected COVID-19. In the United States more than 4.2 million people infected, died almost 150 thousand