Photo taken on April 16, 2020 shows the temporary closure sign of services on the entrance of Murrays Coaches in Canberra, Australia. There had been 6,458 confirmed cases of COVID-19 in Australia as of Thursday morning, an increase of 42 from 6,416 on Wednesday morning. (Photo by Chu Chen/Xinhua)

Photo taken on April 16, 2020 shows the empty passenger terminal at Canberra Airport in Canberra, Australia. The terminal is closed on April 15 and 16 due to no scheduled international and domestic flights for these two days. There had been 6,458 confirmed cases of COVID-19 in Australia as of Thursday morning, an increase of 42 from 6,416 on Wednesday morning. (Photo by Chu Chen/Xinhua)

Photo taken on April 16, 2020 shows the temporary closure sign of services on the entrance of Murrays Coaches in Canberra, Australia. There had been 6,458 confirmed cases of COVID-19 in Australia as of Thursday morning, an increase of 42 from 6,416 on Wednesday morning. (Photo by Chu Chen/Xinhua)