we are carefully keeping our eye on it. the w.h.o. and cdc and others are looking at it carefully. >> that's really fascinating. we don't know how it spreads, whether you breathe it in from another person or if it's a fluid exchange? how do you determine that? >> well, since since it's a respiratory infection the people that have gotten sick have gotten pneumonia and respiratory systems systems. it is spread by the root in rare cases from one person to another in a close family cluster. this virus is a corona viempts it's the same class as sars that we faced if 2003, but it is very different from sars. it is very similar to corona viruses you see in bats. so bats are a suspect. whether or not it's b.c.