The CDC estimates that the H7N9 virus has the greatest potential compared with other influenza A viruses to cause Causation a pandemic , although the risk is low , because like other type A viruses , it is not easily transmitted between people in its current form .

Built in 1898 by John Todd for the Canadian Development Company ( CDC ) , it was the first CDC steamer to arrive at Arriving Dawson City that year , carrying Carry_goods two prefabricated steel steamers for the North-West Mounted Police .

Built in 1898 by John Todd for the Canadian Development Company ( CDC ) , it was the first CDC steamer to arrive at Arriving Dawson City that year , carrying Carry_goods two prefabricated steel steamers for the North-West Mounted Police .

The `` Columbian '' was bought Commerce_buy by the British Yukon Navigation Company along with sixteen other CDC steamers in 1901 .