Home Minister Asaduzzaman Khan has remained in self-isolation after he was diagnosed with Covid-19 in one test and negative in another.   “Despite getting a negative Covid report, the minister remains in isolation and is doing well,” said the ministry’s Public Relations Officer Sharif Mahmud.   Asaduzzaman tested positive for Covid-19 on Saturday. He went to the DMFR Molecular Lab & Diagnostics in Dhanmondi on Monday for test again but the report came out negative.   Meanwhile, Senior Secretary of the ministry's Public Security Department Mustafa Kamal Uddin was also diagnosed with Covid-19.