be giving us all the range of people so here is some of the reaction in the british calculable mike tilsley is an associate professor of infectious disease modeling at the university of warwick in the u.k. he explained the thinking behind the government's strategy. community is that when enough people have been in fact to find the virus then. the epidemic will eventually die out so essentially what we're still trying to do is we're trying to control the outbreak so we're trying to put an intervention that will to delay the peak of the epidemic and also reduce the height of the epidemic at the point to the certain number of people who would be infected then it could no longer in fact he will people because essentially people had contacts and been infected and so it reduced to a low enough level that the epidemic would die out is the risk to have we know that the over seventy's and particularly the eighty's. because they may have underlying health conditions are more risk some opiates that you want to protect those. those people in the population which is why these sorts of measures are being