驯服世纪瘟疫之美国样板：自由、分权、透明、创新
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哦，那是美帝的数据。谢谢提醒。下次注意。
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- 2005-11-23
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以色列的这两个试验具有很明显倾向性，这个感染率0.1%，共608位阳性者的结论是这样得出的：在60万接种两针疫苗的人群中，35%是因为出现症状，65%与感染者有接触，并非普查了每一位注射了疫苗的人。
这个实验的对照组近53万人的感染率为4%。
以色列打疫苗已经两个月，现在至少打了一针的人超过78%，可是感染率一直居高不下，多日处于5-10%，而这个试验的结果是未打疫苗的人，现在仅占人口22%，感染率为4%。这每天测试的阳性者都从哪里来的？
比如昨天的数据：测试人数：80307，确诊人数：4054。感染率：4054/80307=5%
顺便说一下，渥太华的阳性率近来一直保持在1.5-1.6%，加拿大接种一针的人口占3%。
以色列人口9百万，现在每天确诊人数3-4千，加拿大人口3千8百万，确诊人数3-4千。
这疫苗发挥的作用肉眼难以判断，这些试验似乎是想验证什么结论。
这个实验的对照组近53万人的感染率为4%。
以色列打疫苗已经两个月，现在至少打了一针的人超过78%，可是感染率一直居高不下，多日处于5-10%，而这个试验的结果是未打疫苗的人，现在仅占人口22%，感染率为4%。这每天测试的阳性者都从哪里来的？
比如昨天的数据：测试人数：80307，确诊人数：4054。感染率：4054/80307=5%
顺便说一下，渥太华的阳性率近来一直保持在1.5-1.6%，加拿大接种一针的人口占3%。
以色列人口9百万，现在每天确诊人数3-4千，加拿大人口3千8百万，确诊人数3-4千。
这疫苗发挥的作用肉眼难以判断，这些试验似乎是想验证什么结论。
最后编辑:
The U.S. lost a whole year of life expectancy – and for Black people, it's nearly 3 times worse
Study finds life expectancy dropped to its lowest level in 15 years and even lower for Black people and Latinos during the first half of the pandemic.
www.usatoday.com
各国情况不一样。比如说台湾没有接种疫苗本土感染基本为零，而以色列接种人群还有0.1%的感染率。这是不是就证明疫苗不仅无效，反而是有副作用呢？我们不要拿苹果和橘子比。
以色列到目前为止总人口感染率是8.8%，而用同样方法检测的110万接种人口感染率是0.1%。这是有一定可比性的数据。当然，如果有同期以色列未接种人口的感染率（不是检测人口的感染率），甚至有110万人的双盲数据更好。但在这种理想数据不存在的情况下用总人口感染率作基数还是有一定意义的。
最后编辑:
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有两个关于以色列的疫苗的研究，结果相似，都非常好:94%, 95%的。CNN这篇文章大略介绍了这个对比试验的情况。并非随机测试出来的。
所以我对这两个试验结果深表怀疑，疫苗接种两个月以来，据说对病情发展有防范效果，以我的观察，对病毒感染看不出明显的效果。当然我没有比较台湾，中国，因为没有任何意义。
60万2千接种了2针辉瑞疫苗的人群中，仅21人住院治疗，其中7人患重症，都超过50岁，半数以上有慢性病等基础健康问题，3人中度症状，11人为轻症。共有608人感染病毒，占0.1%。608位测试阳性的人，35%是因为出现症状，65%是可能与感染者有接触。
52万8千人未接种疫苗的对照组中，有20,621人感染，将近4%，大约是接种疫苗组的40倍的阳性感染率。
官方发布的数据显示，美国和以色列阳性率感染率（确诊人数/测试人数）一直居高不下，最近两天更新的数据，美国9.3，以色列6.8，这两国疫苗至少一针接种人口分别为17%，82%。
加拿大2月的数据没有更新，worldometers网站的每日数据显示，2月加拿大的阳性率在2-3之间，一针接种比率3.6%。
Coronavirus (COVID-19) Testing
Explore data on COVID-19 testing across the world.
ourworldindata.org
11 min ago
Pfizer vaccine is about 95% effective against Covid-19, Israeli data shows
From CNN's Amir Tal and Elizabeth CohenData from more than 600,000 vaccinated Israelis shows the Pfizer vaccine is 95% effective, with only 21 vaccinated people ending up in the hospital with Covid-19, according to a press release from Maccabi Healthcare Services, Israel’s second largest healthcare provider.
The findings, while preliminary, suggest the vaccine remains remarkably effective in the real world and not just in the clinical trials conducted last year by Pfizer and BioNTech.
Maccabi looked at data from about 602,000 of its members who were at least one week past their second dose of the vaccine. Among them, 7 were hospitalized with severe symptoms, 3 with moderate symptoms, and 11 with mild symptoms.
All of the hospitalized members were over age 50, and half of them had a chronic health condition, such as morbid obesity, according to Ido Hadari, a Maccabi spokesman.
Among the 602,000 vaccinated members, tests showed that 608 became infected with Covid-19. Maccabi did not routinely test members, but of the 608, 35% chose to get tested because they had symptoms of Covid-19 and 65% chose to get tested because they had been exposed to someone with the virus.
Maccabi compared that infection rate with a group of 528,000 members who had not yet received the vaccine. In this control group, 20,621 people, or nearly 4%, were identified as having Covid-19.
Maccabi’s findings are similar to data released earlier this week by Israel’s largest healthcare provider, which found the vaccine was 94% effective. Pfizer’s clinical trial showed about the same efficacy.
有两个关于以色列的疫苗的研究，结果相似，都非常好:94%, 95%的。CNN这篇文章大略介绍了这个对比试验的情况。并非随机测试出来的。
所以我对这两个试验结果深表怀疑，疫苗接种两个月以来，据说对病情发展有防范效果，以我的观察，对病毒感染看不出明显的效果。当然我没有比较台湾，中国，因为没有任何意义。
60万2千接种了2针辉瑞疫苗的人群中，仅21人住院治疗，其中7人患重症，都超过50岁，半数以上有慢性病等基础健康问题，3人中度症状，11人为轻症。共有608人感染病毒，占0.1%。608位测试阳性的人，35%是因为出现症状，65%是可能与感染者有接触。
52万8千人未接种疫苗的对照组中，有20,621人感染，将近4%，大约是接种疫苗组的40倍的阳性感染率。
官方发布的数据显示，美国和以色列阳性率感染率（确诊人数/测试人数）一直居高不下，最近两天更新的数据，美国9.3，以色列6.8，这两国疫苗至少一针接种人口分别为17%，82%。
加拿大2月的数据没有更新，worldometers网站的每日数据显示，2月加拿大的阳性率在2-3之间，一针接种比率3.6%。
Coronavirus (COVID-19) Testing
Explore data on COVID-19 testing across the world.
11 min ago
Pfizer vaccine is about 95% effective against Covid-19, Israeli data shows
From CNN's Amir Tal and Elizabeth Cohen
Data from more than 600,000 vaccinated Israelis shows the Pfizer vaccine is 95% effective, with only 21 vaccinated people ending up in the hospital with Covid-19, according to a press release from Maccabi Healthcare Services, Israel’s second largest healthcare provider.
The findings, while preliminary, suggest the vaccine remains remarkably effective in the real world and not just in the clinical trials conducted last year by Pfizer and BioNTech.
Maccabi looked at data from about 602,000 of its members who were at least one week past their second dose of the vaccine. Among them, 7 were hospitalized with severe symptoms, 3 with moderate symptoms, and 11 with mild symptoms.
All of the hospitalized members were over age 50, and half of them had a chronic health condition, such as morbid obesity, according to Ido Hadari, a Maccabi spokesman.
Among the 602,000 vaccinated members, tests showed that 608 became infected with Covid-19. Maccabi did not routinely test members, but of the 608, 35% chose to get tested because they had symptoms of Covid-19 and 65% chose to get tested because they had been exposed to someone with the virus.
Maccabi compared that infection rate with a group of 528,000 members who had not yet received the vaccine. In this control group, 20,621 people, or nearly 4%, were identified as having Covid-19.
Maccabi’s findings are similar to data released earlier this week by Israel’s largest healthcare provider, which found the vaccine was 94% effective. Pfizer’s clinical trial showed about the same efficacy.
居高不下？看看我前面贴的截图。美国自一月初大规模接种疫苗以来的7日平均每日感染人数一直直线下降好不好？这种直线下降的斜率之大，我甚至犹豫了一下是不是应该用“断崖式下降”来形容。这种下降是在美国各州开放程度持续增加的情况下实现的。
加拿大和美国的边境基本上就是个漏筛，虽然本来就地广人稀的加拿大自己接种量不大，但人口稠密的大邻居疫情得控，显然对加拿大疫情有显著而且直接的正面影响。
