well, joining us is how you see he is a professor of epidemiology at the university of bremen. here in germany. i welcome to d, w. now over a quarter of the german population is still unvaccinated, so what actually can be done at this stage to convince them to get the job? yeah, this is a difficult task. it's not a homogeneous group. obviously there are some who us to go for the job. i need information that we need to sort of know a barrier access to vaccination and that's we work. but we also have a hard and group of people. so it's more of a built on thing. it's not really about vaccination, it's more about opposition in general. and those ones, it's much harder to reach and i'm afraid we won't reach them with what is an offer now. right, that's going to be, it's still a tough job for authorities. now, germany, along with many other countries, are seeing at sharp rises in infections. but at the same time, we're actually seeing infections in countries like say, africa and denmark experienced there. and there waves a little bit earlier, dropped quite quickly. what does this data