The World Health Organization (WHO) is concerned about the number of coronavirus cases with no clear epidemiological link, although the total number of cases outside China remains relatively small, its director general said on Saturday. Cases with no clear link include those with no travel history to China or contact with a confirmed case, Tedros Adhanom Ghebreyesus said in a briefing. China has reported 75,569 cases to the WHO, including 2,239 deaths, he said. According to available data, the disease remains mild in 80% of coronavirus patients, and is severe or critical in 20% of patients, he said. The virus has been fatal in 2% of reported cases. The risk of death increases for older patients, Tedros said, adding there […]