Mumbai, May 24 -- Jharna Mandowara, 15, lives in a high-rise apartment in Kandivli in suburban Mumbai with her parents and 18-year-old sister. She hasn't stepped out of the house since March 22 because of the lockdown. But the Sars-Cov-2 virus and its effect hit home nine days ago, when a neighbour three floors below them tested positive for Covid-19 and the building was partially sealed....