Lucknow: Uttar Pradesh CM Yogi Adityanth on Tuesday self-isolated himself as a precautionary measure after some officials in his office tested positive for coronavirus. “Some officers in my office have been infected with Corona. These officers have been in contact with me, so I have taken a precaution as a precaution and am starting all the work virtually,” tweeted Yogi Adityanath. Also Read - COVID-19 Expert Analysis: What is Herd Immunity?