However, the issue of home quarantine has, in recent times, proven tricky as it is difficult to keep tabs on those who are in quarantine and ensuring that they do not slip out stealthily, as has been witnessed in some cases. BMC officials pointed that a routine call is made to those in home isolation to check on their health status. “In many cases, we have also informed the secretary or chairman of the housing society about flats where there are patients in home quarantine so that they can seal it and such patients do not step out,” said a civic official.