now this comes just after a joint project between pfizer and bio inter. their vaccine has proven to be over 90 percent effective. tell us more about that. yes, we hear that the vaccine that you mentioned, it's a joint germany american production indeed shows very good results. again, these are early results, interim results, but still the developers say it was 90 percent effective, but not everybody is fully convinced because some critical questions still remain unanswered. for example, whether this vaccine entirely prevents infection whether symptomatic areas might still be a cause for concern in the future, or there was no information, in fact, even on the frequency of side effects or how severe they were. and we have few details on the vaccines safety profile, in fact, and we hear from pfizer. this is one of the companies behind these facts saying that all that data is going to be released in the coming weeks. so this is an ongoing developing story, and of course there are still concerns. there are down there is criticism, just like with the russian va