Beijing, Jan. 28 -- Premier Li Keqiang on Monday became the highest-ranking Chinese leader to visit Wuhan, the ground zero of the novel Coronavirus outbreak, as he took charge of the complex efforts to curb the spreading pathogen which has claimed 81 lives and infected 2,840.

The toll included the first death reported in Beijing on Monday. The virus has spread to at least 12 countries, and all regions of China except Tibet Autonomous Region. Cambodia confirmed its first case on Monday.

US President Donald Trump offered China any help needed to control the outbreak. "Very few cases reported in USA, but strongly on watch. We have offered China and President Xi (Jinping) any help that is necessary, "Trump tweeted.

Li's visit to Wuhan came a...