Hon Dr DAVID CLARK: The campaign has four very simple messages that everyone needs to follow. Firstly, wash your hands with soap for 20 seconds, then dry them. Do this often. This kills the virus by bursting its protective bubble. Secondly, stay home if you're sick. If you have a fever, a cough, shortness of breath, sneezing, or a runny nose, don't go to work or school. Thirdly, self-isolate for 14 days if you have been overseas or if you have been in contact with someone who has COVID-19. And, fourthly, be kind. Check in on your neighbours, especially older or vulnerable people. Make sure they have what they need to get through this.