where for more on this story i'm joined now by christian at lynda maya spokesperson at the wall health organization welcome to you christiane we are now understanding that people can spread the virus before symptoms show that's according to china's health minister on sunday how worrying is this and in light of that what should people do . well there are good news and the bad news as you said is a flu like behaving virus like like the flu like the common cold and means you're kind of mild symptoms hence a little sneeze a little cough or you could have heavy symptoms with fever and everything associated and yet you could spread it in all these scenarios that's the bad thing but at the same time many people can get treated and the good news is you can prevent yourself like you prevent yourself from the common cold simple protection measures hygiene your own coughing into an elbow or into a tissue not into the open it's very important that if you're in contact with someone. be of life your hands afterward so avoid being sneezed on coughed up so that simple measures go a long way absolutely