and joining us now from sydney australia is dr reiner macintyre she's head of the bio security research program at the university of new south wales and is an expert on infectious diseases at epidemic control dr macintyre what makes this virus so dangerous. we don't know exactly how dangerous it is yet but it's a coronavirus that same's related to the sons' virus and corona virus there are other coronaviruses that are new cause very mild infections in humans like to come common called type syndrome but we have had these 2 very severe chronic virus infections in the past sons' in 2003 and most current a virus since 2012 and this same strain be more like those 2 viruses but the death rate certified is lower than that with saz which is 12 percent 26 percent with ms chrono virus. with this infection as as you mentioned for that sort of out of more than $200.00 cases understand that australian authorities are screening for infections of this virus what do we done to stop it spreading. the k. to stopping this infection spreading it firstly identifying people who are sick as quickly as possibl