The head of the World Health Organization on Thursday urged countries around the world to take necessary measures to prevent the new coronavirus from becoming a pandemic, saying the situation has reached "a decisive point.""If you act aggressively now, you can contain this virus. You can prevent people getting sick. You can save lives," WHO Director General Tedros Ghebreyesus said in a press briefing."Our message continues to be that this virus has pandemic potential and WHO is providing the tools to help every country to prepare accordingly," he said.Related coverage:READ FULL ARTICLE