More than two-thirds of omicron cases are reinfections, English study suggests

[billwanhua]

Two-thirds of people with omicron say they've had Covid before, English study reports

Omicron has almost completely replaced the delta variant of Covid-19 in England, a new study has found.

www.cnbc.com

• Omicron has almost completely replaced the previously dominant delta variant of Covid-19 in England, a new study has found.
• More than two-thirds of people who tested positive in the study reported that they had either had suspected or confirmed Covid in the past.
• Omicron is a heavily mutated, highly infectious variant of Covid-19 that has led to record numbers of Covid infections in many countries.

是不是有超过2/3总人口之前已经感染过了， 如果不是，那么：
1. 感染过了的人更容易被感染？还是感染过的人本来就是高危人群，喜欢乱闯不采取物理防疫
2. 不管疫苗还是感染一次，群体免疫就是扯淡

 

[breaveheart]

对旧毒株的群体免疫，会促成新的变异占据主流，而新的变异趋势是毒性越来越低，趋近于流感，这是一步步向大流行结束前进。所以暂时的群体免疫也是有用的。只是别指望一战定胜负。

 

[春夏秋鼕]

感染过了的人更容易被感染，不符合自然规律吧

 

[billwanhua]

感染过了的人更容易被感染，不符合自然规律吧

有可能感染过的人本来就是高危人群，喜欢乱闯不采取物理防疫， 或者感染过了无所谓，虚假安全

 

[billwanhua]

Canada has detected BA.2 cases. What we know about this Omicron subvariant - National | Globalnews.ca

The BA.2 sub-lineage appears to be more contagious than the original Omicron variant and is harder to detect in a PCR test, experts say.

globalnews.ca

“The properties of the virus are not known other than that it is more contagious than BA.1 and is also increasing in Denmark and Sweden, and may appear to be taking over BA.1 already.”

新变异来了，不知道感染过老omicron变异的人对这种新变异有没有免疫力，如果有，多久？三个月？

Stealth’ Omicron​

BA.2 has been dubbed the ‘stealth’ Omicron by some scientists because its genetic composition makes its harder to track in a polymerase chain reaction (PCR) test.

The UKHSA said that BA.2 lacks the genetic deletion on the spike protein which produces S-gene target failure (SGTF) in some PCR tests, which has been used as a proxy for Omicron cases previously.

Pcr 都测不出来？
lacks the genetic deletion on the spike protein 没有刺突了？@贵圈

 

[阿土仔]

呵呵，这把完犊子了！

 

[春夏之交]

比伤风感冒病毒更弱了。

 

[茶马盐铁]

可见西方的疫苗根本无用。

必须引进中国的国产灭活！

 

[阿土仔]

可见西方的疫苗根本无用。

必须引进中国的国产灭活！

还是“进村打断腿，犟嘴打掉牙”更实惠！

 

[ottawa_tj]

Canada has detected BA.2 cases. What we know about this Omicron subvariant - National | Globalnews.ca

The BA.2 sub-lineage appears to be more contagious than the original Omicron variant and is harder to detect in a PCR test, experts say.

globalnews.ca

“The properties of the virus are not known other than that it is more contagious than BA.1 and is also increasing in Denmark and Sweden, and may appear to be taking over BA.1 already.”

新变异来了，不知道感染过老omicron变异的人对这种新变异有没有免疫力，如果有，多久？三个月？

Stealth’ Omicron​

BA.2 has been dubbed the ‘stealth’ Omicron by some scientists because its genetic composition makes its harder to track in a polymerase chain reaction (PCR) test.

The UKHSA said that BA.2 lacks the genetic deletion on the spike protein which produces S-gene target failure (SGTF) in some PCR tests, which has been used as a proxy for Omicron cases previously.

Pcr 都测不出来？
lacks the genetic deletion on the spike protein 没有刺突了？@贵圈

BA2不是BA1的变种，而是和BA1同一级的姊妹变种。。。co-evolved。不必担心。

主题 'Omicron妹妹出现了。隐形你妹啊！' https://bbs.comefromchina.com/threads/1782979/

 

[茶马盐铁]

还是“进村打断腿，犟嘴打掉牙”更实惠！

那当然，国产灭活必须配合这两条才能有效防疫

 

[Hard Worker]

比伤风感冒病毒更弱了。

哪个感冒能让美国一天死近四千人?