While addressing a press conference in the national capital on April 14 amid coronavirus pandemic, the Joint Secretary of Union Health Ministry, Lav Agarwal said, “Our major effort is to see how to break the chain of transmission. If no new case is reported in an area for 28 days, the last case comes negative, then we believe that chain of transmission has broken there and no new cases are coming.” “Under this, we are promoting the concept of behavioral change in terms of social distancing to break the chain of transmission,” he added.