Incomplete pictureKluge warned of approaches becoming overly politicised and said it was important that the response be based "on epidemiological and public health data."He also defended authorities that have been hesitant to impose and ease measures in recent months as they are faced with a new disease."WHO has been blamed a number of times but communicating on something you don't really know is very very difficult," Kluge said."For some you do too little for some you go too far," he said.According to Kluge, as research progresses, knowledge of the virus remains imperfect, meaning that decisions must be made with an incomplete picture."In a number of countries we see that the politics overwrite the scientists and also in a number of other.