That is a very good question. We are looking at exactly what is happening in meat processing plants. Currently, two theories have been advanced to me: one is about the cold environment in the plants, which may be propitious to the virus, and the other is the possibility that staff are congregating in such a way as to spread the virus. We do not know what it is, but we are investigating. Wherever outbreaks take place, we will use local cluster-busting techniques to stamp them out.