After superstar Amitabh Bachchan and his actor-son, Abhishek Bachchan tested positive for the COVID-19, as many as 54 persons were screened and swab sample of 28 persons who had come in contact with the Bachchan family was collected. All of the 28 persons have tested negative for the deadly virus.source https://www.indiatvnews.com/entertainment/bollywood/amitabh-bachchan-nanavati-health-update-abhishek-bachchan-covid-19-coronavirus-633788