Two confirmed COVID-19 cases arrived in Sydney on flight EY450 , before flying home to Adelaide on flight VA418 .
The 11th and 12th cases were a male in his 60s and a female in her 50s who had travelled extensively through Italy and Spain and arrived in Sydney on flight EY450 on 9 March , before flying home to Adelaide on flight VA418 on 10 March .
2020 coronavirus pandemic in Australia