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Hello people, I want to talk to you about covid-19 vaccine, okey? The one developed by University of Oxford together with AstraZeneca to said company, all right? Recently the published the results for so the overall efficiency of the vaccine and this... the number was 70% Now, compared to the other two, with numbers in the ratio of 90-95% this look bad. However, it turn out they made a mistake with about three thousand people volunteers and... because they gave to this people a low at dose regime of the vaccine, so basically they gave the same amount of liquid but the was less amount of vaccine in the liquid, it was deleted. So, this was a mistake! Every turn out! Then, when you do that in the first dose and then you give the full of mount in the second, it looks like the overall efficacy rises from 70 to round 90%. Now, taking into account that this vaccine cheaper that the other two, it's in the ratio of to three euros around and... 20 whatever. And then can be stored in freezers, all right? At freeze temperature around eight degrees positive, rather minus 20 minus 80. So, of course, this... that all this too characteristics make this vaccine much better, so the only problem would be the lower efficacy. But, if turns out that the overall efficacy is actually in the ratio of 90%... then that's really good. So, looks like they're going to make new trials now. But then, of course, some people are saying: Ah, if they're making new ones is because they didn't doing right the first time in someone. So it's tricky.