The government has taken a page out of China’s book and announced heavy restrictions on the movement of people but fell short of calling it a ‘lockdown’ to prevent further transmission of coronavirus, hours after recording the highest number of cases and fatalities in a day on Thursday.   “The whole of Bangladesh is declared as ‘vulnerable-to-infection’ zone under the Infectious Diseases (Prevention, Control and Elimination) Act 2018,” the Directorate General of Health Services (DGHS) said in a circular in the evening.   It urged the people of infected areas to strictly follow its directives about maintaining social distancing and staying indoors.