SHANGHAI, Feb 14 (Reuters) - Steven, a financier in his 40s, tested positive for COVID-19 in Beijing at the height of China's outbreak in December and felt fine until the eighth day, when his condition worsened. His sister’s driver took him to a hospital. Barely able to walk and fighting for breath, he was told there were no beds. They drove to another; he was rejected again. Increasingly desperate, he asked his sister to tap into her network of contacts. After hours of frantic calls, Steven was taken to a packed hospital and given oxygen and a bed in a...