Maria Cheng Exposure Quotations

It is possible that they all had common exposure to sick poultry but it is also possible there may have been human to human transmission. We don't have enough information to draw a hypothesis either way.

Our office in Beijing was informed of this today. It is in a province that hasn't identified human cases before but it is somebody who seems to have a history of exposure to poultry.

We'd like to see all these cases investigated rapidly so that we can determine what the mode of transmission was, what the source of exposure was, and whether or not there were any characteristics of the situation that are different from what we've seen in Asia.