At the height of the Australian coronavirus epidemic, older people were urged to stay away from children and grandchildren to avoid contracting the virus. Age is a major risk factor for COVID-19, and many older people made the emotional decision to stay away from loved ones. But as the number of active cases continues to fall, families are wondering if it's okay once again for grandparents to hug and be around their children and grandchildren. On today's show: * Is it ok to hug our parents again? * What should people aged over 70 be doing now? * Why is it ok for kids to go to school, but not visit grandparents? And Norman talks about a study how coronavirus affects the immune system and what it could mean for designing treatments.