Closure of beaches in Hong Kong; and suitability of different types of mask
9:00am-9:15am: closure of beaches in Hong Kong\n\n9:00am-9:15am: Martin Williams, Hong Kong based writer, photographer, videographer and conservationist\xa0\n\n9:00am-9:15am: Dr Raymond Yip, Specialist in Orthopaedics & Traumatology\n\n9:15am-9:30am: suitabilit...