The Nevada State Public Health Laboratory has identified a rare case of COVID-19 reinfection occurring just 22 days after the patient first tested positive.
The patient, an unvaccinated 31-year-old Mineral County man with no underlying health conditions, first tested positive for the delta variant and then, three weeks later, for a different strain that evolved from the delta variant, Mark Pandori, director of the lab at the University of Nevada, Reno’s School of Medicine, told the Review-Journal this week.
Infection from COVID-19 typically results in immunity from reinfection for aminimum of several months, according to the Centers for Disease Control and Prevention. Such rapid reinfection, especially in a young and healthy individual, could mean that the virus has mutated to a degree that makes it more resistant than previously seen to the protection afforded by past infection or from vaccination.
More such reinfections would first need to be identified to know if this is the case.
“We don’t know how widespread the phenomenon is right now, but it implies that the virus is definitely going to be fine in terms of staying in circulation in the population,” given how much the strain that caused the reinfection differs from the delta variant, he said.
The strain, a sublineage of delta known as AY.26, has 31 genetic differencesfrom delta, including on the spike protein, the part of the virus targeted by vaccines, he said. It is this genetic variety that especially concerns him.
“My concern is that there’s a scientific rationale for this being indicative of a bigger problem,” said Pandori, whose lab in August 2020 reported the first known case of COVID-19 reinfection in North America.
That bigger problem is the possibility of increasing numbers of reinfectionsas well as so-called breakthrough cases in vaccinated individuals.
WHO世卫组织把ay系列的都列为delta病毒了，所以现在美国和世界各地测出来的99.8%
基本都是delta病毒，其他的变种基本已经没有了（0.1%）
新加坡变异株，不出意外的话，将会命名为AY.23.1。由于新加坡正处于爆发期，AY.23.1相对增长优势高达56%，远超市面上其他所有毒株
但delta病毒内斗不断，美国ay3已经是8月份的老黄历了， 美国最近一个月风头最劲的是ay25， 已经把印度产的b.1.617.2逼到50%左右了
美国最新到数据大概如下
B.1.617.2 - 43-51%
AY.25 - 15-18%
AY.4 - 11-16%
AY.3 - 10-11%
AY.26 - 3-4%
这就是养蛊啊
毒王可能是AY.26，或者AY.25，或者几个一起来
The Nevada State Public Health Laboratory has identified a rare case of
COVID-19 reinfection occurring just 22 days after the patient first tested
positive.
The patient, an unvaccinated 31-year-old Mineral County man with no
underlying health conditions, first tested positive for the delta variant
and then, three weeks later, for a different strain that evolved from the
delta variant, Mark Pandori, director of the lab at the University of Nevada, Reno’s School of Medicine, told the Review-Journal this week.
Infection from COVID-19 typically results in immunity from reinfection for aminimum of several months, according to the Centers for Disease Control and
Prevention. Such rapid reinfection, especially in a young and healthy
individual, could mean that the virus has mutated to a degree that makes it
more resistant than previously seen to the protection afforded by past
infection or from vaccination.
More such reinfections would first need to be identified to know if this is
the case.
“We don’t know how widespread the phenomenon is right now, but it implies
that the virus is definitely going to be fine in terms of staying in
circulation in the population,” given how much the strain that caused the
reinfection differs from the delta variant, he said.
The strain, a sublineage of delta known as AY.26, has 31 genetic differencesfrom delta, including on the spike protein, the part of the virus targeted
by vaccines, he said. It is this genetic variety that especially concerns
him.
“My concern is that there’s a scientific rationale for this being
indicative of a bigger problem,” said Pandori, whose lab in August 2020
reported the first known case of COVID-19 reinfection in North America.
That bigger problem is the possibility of increasing numbers of reinfectionsas well as so-called breakthrough cases in vaccinated individuals.
疫苗高施打地区脱颖而出的 都是强者
自然免疫产生的新的免疫力更接近delta，都没有扛住AY.26，22天再感染
疫苗的抗体是武汉出现的原始病毒，遇到AY.26，后果更糟了
打mRNA就自以为万无一失，最终会死得又快又好
内华达健康青年22天再次感染不同delta子变种的原始新闻
AY.26已经能逃逸原始delta感染刚产生的免疫，疫苗更够呛了
新闻没说这个男子第一次感染是什么strain，不过原始delta在内华达占63%，所以很可能是原始delta
第二次感染症状比第一次重，不过这个人第一次感染产生的免疫就是delta的，和疫苗
抗体不一样。所以也没住院。