今天50+可以打疫苗了，你预约了吗？

[凤舞九天]

数据来了：加拿大53人打第一剂疫苗后感染死亡 | 新华侨网

数据显示，在加拿大两个省已经接种第一剂疫苗的数百万人中，只有差不多1%的人感染COVID-19，其中有53人死

cfcnews.com

打一针肯定比不打强，但两针隔太久影响最后效果的话我宁愿再等等，反正都等了一年多。

 

[qqca]

打一针肯定比不打强，但两针隔太久影响最后效果的话我宁愿再等等，反正都等了一年多。

应该问题不大，只要平时注意遵守3W规则，少去人多的地方。

 

[qqca]

目前主要有四大类变异病毒，它们是英国变异（B.1.1.7), 南非变异(B.1.351), 巴西变异(P.1)以及最近的印度变异(B.1.617),这四类病毒的最大特点是传播感染极强，它们都在加拿大被发现，占比极高，是造成目前每天新感染者居高不下的一个主要原因。我不是生物医学出身，可能说不到点上，只能陈列一些事实，加以说明，望大家谅解。

 

[ASSISTANT]

去美国给钱就打。挨个打一边。疫苗集邮。比专家分析要不要混打前卫。

 

[ottawa_tj]

打一针肯定比不打强，但两针隔太久影响最后效果的话我宁愿再等等，反正都等了一年多。

再等都支援印度了。

打完一针后，大家的警惕性都会下降，你等等，就会多一份感染风险。

九月以前开学前，说还得让学生打完疫苗。

想两针正常间隔可能得年底了，要是还得打第三针，那你就白等了。

如果能去美国，他们那里可以在一个月之内打完两针。好像已经有加拿大人飞过去了。

 

[qqca]

再等都支援印度了。

打完一针后，大家的警惕性都会下降，你等等，就会多一份感染风险。

九月以前开学前，说还得让学生打完疫苗。

想两针正常间隔可能得年底了，要是还得打第三针，那你就白等了。

如果能去美国，他们那里可以在一个月之内打完两针。好像已经有加拿大人飞过去了。

说曹操到，曹操就到，阿尔伯塔省刚宣布与它相邻南部的美国蒙大拿州形成疫苗合作伙伴关系了！

 

[Fishottca]

再等都支援印度了。

打完一针后，大家的警惕性都会下降，你等等，就会多一份感染风险。

九月以前开学前，说还得让学生打完疫苗。

想两针正常间隔可能得年底了，要是还得打第三针，那你就白等了。

如果能去美国，他们那里可以在一个月之内打完两针。好像已经有加拿大人飞过去了。

打一针，放松警惕导致感染最可能的后果就是产生新的变异病毒--加拿大变异。
如果不幸变异能逃过已有的疫苗，那么所有的功课都白做

 

[27149]

去美国给钱就打。挨个打一边。疫苗集邮。比专家分析要不要混打前卫。

不给钱也能打

 

[凤舞九天]

再等都支援印度了。

打完一针后，大家的警惕性都会下降，你等等，就会多一份感染风险。

九月以前开学前，说还得让学生打完疫苗。

想两针正常间隔可能得年底了，要是还得打第三针，那你就白等了。

如果能去美国，他们那里可以在一个月之内打完两针。好像已经有加拿大人飞过去了。

过些天能约时，估计会约到6月份第一针，第二针要到10月份。要能开车去美国，还不如去美国打。

 

[lindamy]

过些天能约时，估计会约到6月份第一针，第二针要到10月份。要能开车去美国，还不如去美国打。

美国没说给外国人都打疫苗，我看到的是有个州给加拿大运货的卡车司机打，只此一州，纽约市准备给游客打阿斯利康或者强生疫苗。

 

[凤舞九天]

美国没说给外国人都打疫苗，我看到的是有个州给加拿大运货的卡车司机打，只此一州，纽约市准备给游客打阿斯利康或者强生疫苗。

据我所知可以，而且同样免费。否则外国留学生和游客怎么办，让他们传病毒？

 

[lindamy]

据我所知可以，而且同样免费。否则外国留学生和游客怎么办，让他们传病毒？

纽约市长打算给国内游客打强生疫苗，因为对多数国家旅游还没有放行，州长对市长的承诺还没有发布意见。
vaccination vans in popular tourist spots across the city that can administer the Johnson & Johnson Covid-19 vaccine to anyone who wants one.

De Blasio’s plan would target domestic travelers as many international travelers are bannedfrom entering the US under current federal regulations. Reported talksbetween the EU and the US over a vaccine passport have hinted at the possibility of summer travel between the two countries, though no confirmed plans have been announced.

 

[billwanhua]

打一针的英国实战效果，犹豫疫苗间隔时间长的可以参考：

One dose of Pfizer’s COVID-19 vaccine still leaves recipients vulnerable to variants: U.K. study

Researchers urge public to get second COVID-19 vaccine dose after study finds single dose of Pfizer vaccine insufficient to protect against variants

www.theglobeandmail.com

Researchers in Britain have found that one dose of the Pfizer-BioNTech vaccine provides insufficient protection against new variants of the COVID-19 virus and urged public-health officials to be vigilant about ensuring that people receive a second injection.

The study “is basically showing that if you’ve had prior COVID-19, and then you’ve had a single dose vaccine, you are really in a different league in terms of your immune response,” said Rosemary Boyton, a professor of immunology and respiratory medicine at Imperial College who co-authored the study. “It’s almost like the infection has acted as a prime and the first dose has acted as a boost.”
这个说感染一次后打了第一针辉瑞疫苗效果非常好。是不是灭活疫苗跟辉瑞疫苗混打比较好？灭活跟没有变异的感染应该差不多。高兽医也不是乱说。

However, the group of volunteers who had not been infected showed a much weaker immune response to the variants after one dose. The study showed that their level of neutralizing antibodies was 11- to 25-fold lower against the B. 1.1.7 variant compared with the original version of the virus, “resulting in the majority of individuals falling below the protective threshold.”

Safety and efficacy of Pfizer and AstraZeneca COVID-19 vaccines even better than clinical trials predicted

Researchers in the UK and United States have demonstrated the efficacy of one dose of either the Pfizer-BioNTech or Oxford-AstraZeneca vaccine against infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in a real-world community setting in the UK.

www.news-medical.net

英国实战数据，一针效果较好，但对变异比较差，一针对英国变异的抗体减低11到25倍，应该没有什么效果

As reported in The Lancet: Infectious Diseases, documented infection rates following a single dose of the Pfizer-BioNTech (BNT162b2) vaccine were 58% lower after 12 to 20 days, 69% lower after 21 to 44 days, and 72% lower after 45 to 59 days, compared with unvaccinated controls.

Following one dose of the Oxford-AstraZeneca (ChAdOx1) vaccine, documented infection rates were 39% lower after 12 to 20 days and 60% lower after 21 to 44 days than among unvaccinated controls.

 

[27149]

美国没说给外国人都打疫苗，我看到的是有个州给加拿大运货的卡车司机打，只此一州，纽约市准备给游客打阿斯利康或者强生疫苗。

Vaccine tourism: Canadians fly south for shot as U.S. demand falls

With COVID-19 vaccine demand declining in the United States, some Canadians facing third-wave lockdowns are flying south to get inoculated, perhaps months earlier than they would be able to at home.

www.reuters.com

 

[qqca]

我是5月6号，周四下午三点打的第一针，感觉就像打了一个普通防流感疫苗那样；5月7号周五，从早上起来开始，一整天感觉左上臂外侧酸痛，因为是左臂注射，无其它症状，可以忍受，就是有时感到有些困倦感，在公司干了一天工作，晚上回家睡了一大觉；5月8号早上一觉醒来，动一下左胳膊，嘿，左上臂竟然奇迹般的不疼了。这就是我打第一针疫苗的感受。