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The best data so far is out of Israel because they've vaccinated most of the elderly but not many of the younger population. They've seen a drop in hospitalizations and deaths in the elderly group but not so much in the younger group, indicating the vaccine is effective in terms of large scale effects.
I don't know what they're comparing to, but out of half a million vaccinated people, there are 0 deaths and 4 who are severely ill. For comparison, in the USA, we have 5 deaths for every half a million people, per day, and about 100 hospitalized for every half million. And Israel had similar numbers a month ago, I believe. So it's 93% effective against any infections (according to the article) and 90-100% effective against severe illness and death so far (based on my rough calculation. Keep in mind too that most of these half million are older, so my numbers are actually underestimating how many deaths and hospitalizations we would expect by a significant amount, but also my math could be off).
edit: I should add that it's 15 hospitalized (4 severely ill). It's still early so it's hard to say exactly how effective the vaccine is but it seems to match the clinical trials so far, which is good news. The open question is what'll happen with the south africa variant and also how much and how quickly vaccination will lead to herd immunity (or a drop in infections among unvaccinated people in the population).
I don't know what they're comparing to, but out of half a million vaccinated people, there are 0 deaths and 4 who are severely ill. For comparison, in the USA, we have 5 deaths for every half a million people, per day, and about 100 hospitalized for every half million. And Israel had similar numbers a month ago, I believe. So it's 93% effective against any infections (according to the article) and 90-100% effective against severe illness and death so far (based on my rough calculation. Keep in mind too that most of these half million are older, so my numbers are actually underestimating how many deaths and hospitalizations we would expect by a significant amount, but also my math could be off).
It works: 0 deaths, only 4 severe cases among 523,000 fully vaccinated Israelis
HMO data a week after 2nd dose shows 93% effectiveness, ‘unequivocally' proving vaccine's success and leaving ‘no doubt’ it’s saved many Israeli lives, says Maccabi official
www.timesofisrael.com
Vaccines are curbing COVID: Data from Israel show drop in infections
The country is the first to see a direct effect of vaccines working in such a large group of people.
www.nature.com
edit: I should add that it's 15 hospitalized (4 severely ill). It's still early so it's hard to say exactly how effective the vaccine is but it seems to match the clinical trials so far, which is good news. The open question is what'll happen with the south africa variant and also how much and how quickly vaccination will lead to herd immunity (or a drop in infections among unvaccinated people in the population).
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