COVID-19 National Incident Room Surveillance Team. COVID-19, Australia: Epidemiology Report 12: Reporting Week Ending 23:59 AEST 19 April 2020: Notified Cases of COVID-19 and Associated Deaths Reported to the National Notifiable Diseases Surveillance System (NNDSS) to 19 April 2020. Commun Dis Intell (2018) 2020, 44.