Sydney Australia's chief medical officer said on Monday it was no longer possible to completely prevent people with the coronavirus from entering the country, citing concerns about outbreaks in Japan and South Korea.Australia, one of the first countries to put restrictions on its borders in a bid to limit the spread of the virus, confirmed its first death from the disease on Sunday."It is no longer possible to absolutely prevent new cases coming in," Brendan Murphy, Australia's Chief Medical Officer, told reporters in Canberra."We have got concerns about Japan and South Korea. They are working hard to control their outbreaks but we are still concerned that people in those countries and other high risk countries may present with an infection."The chief medical officer's comments came as Australian officials confirmed the country's 30th case of coronavirus, a 40-year old man who arrived in Australia's second most populated city, Melbourne from Iran. He later travelled to Tasmania.Meanwhile, Australia named the 78-year old man who became the country's first person to die from coronavirus as James Kwan.He was a passenger on the Diamond Princess ship that was held off Japan's coast for weeks. Kwan and his wife, who also has the virus, were transferred back to Australia for treatment.