The Globe and Mail reports in its Wednesday edition that Canadian companies are banning travel to China and instructing staff to work from home if they have recently gone there as the deadly coronavirus that began in Wuhan spreads around the world. The Globe's Brent Jang and Joe Costaldo write that the novel coronavirus had killed at least 100 people and infected thousands of others as of Tuesday, with more than 4,600 confirmed cases in China. Those numbers have put a chill on companies that do business in China and cast uncertainty on future plans. Teck Resources, Canada's largest diversified mining company, also said it has measures in place to minimize health risks for its staff. Teck has 15 workers based at offices in Beijing and Shanghai. "Our first priority is always the health and safety of our people, and we are closely monitoring the situation," Teck spokesman Chris Stannell said in a statement to The Globe. Concerns are escalating that the coronavirus has spread rapidly both inside and outside China. The S&P/TSX Composite Index rose 0.3 per cent Tuesday after dropping 0.7 per cent Monday.