We've seen images where quite clearly they are not protected properly. We see people with bare hands, their eyes, their nose and their mouth uncovered, where they are possibly breathing in virus,
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.
We've never seen so many outbreaks of the same virus in so many different regions. Our concern obviously is that humans could potentially come into contact with birds infected with H5N1, which would mean populations worldwide are potentially at risk.
I'm not sure we've seen a cluster like this in terms of numbers and certainly it's a concern. Is the virus being transmitted more easily from birds to humans, or even from humans to humans? We need to put all the pieces together before we can come to conclusions.