1.媒体来源:
FOX31 Denver
2.记者署名:
D.J Summers
3.完整新闻标题:
CDC: Natural immunity stronger than vaccines alone during delta wave
在Delta流行期间，人体自然免疫功能比打疫苗强六倍！
4.完整新闻内文:
DENVER (KDVR) — Natural immunity was six times stronger during the delta wave
than vaccination, according to a new report from the U.S. Centers for Disease
Control and Prevention.
The report, published Jan. 19, analyzed COVID outcome data from New York and C
alifornia, which make up about one in six of the nation’s total COVID deaths.
The study has limits — namely, it was done before the omicron wave and doesn
’t factor in any information about boosters. It does, however, broadly agree
with studies from other countries.
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d
Vaccines were more effective at preventing infection or serious illness than n
atural immunity from prior infections before the delta variant became the domi
nant strain. After delta became the main strain, vaccines alone grew weaker ag
ainst the virus and natural immunity got much stronger. This could be due in l
arge part to the fact that vaccines began wearing off around the time delta sp
read, according to the study.
“Importantly, infection-derived protection was greater after the highly trans
missible Delta variant became predominant,” reads the report, “coinciding wi
th early declining of vaccine-induced immunity in many persons.”
In California during the week beginning May 30, 2021, COVID-19 case rates were
19.9 times lower among vaccinated people without a previous case, 7.2 times l
ower among unvaccinated people with a previous COVID-19 case, and 9.6 times lo
wer among vaccinated people with a previous COVID-19 case than they were among
unvaccinated people without any previous infection.
Two-thirds of COVID vaccine side-effects are just a placebo effect, study says
During a time when the delta variant was the dominant strain on Oct. 3, it cha
nged. Case rates in vaccinated people without a previous COVID-19 diagnosis we
re only 6.2 times lower than unvaxxed, uninfected people — three times less e
ffective than pre-delta. They grew to 29 times lower among unvaccinated people
with a previous diagnosis, and 32.5-fold among vaccinated people with a previ
ous diagnosis of COVID-19.
Similar figures came from New York.
The study also tracks the same trend with hospitalizations. In California, the
jump in protection against serious illness was even more dramatic. It shows t
he protection afforded by previous infections went up nine times in the delta
wave.
The effectiveness of natural immunity with omicron, however, is not fully unde
rstood yet. The CDC warns both vaccines and natural immunity have declined wit
h the new dominant variant.
丹佛（KDVR）——根据美国疾病控制和预防中心的一份新报告，Delta病毒流行期间的自
然免疫力是疫苗接种的六倍。
这份于 1 月 19 日发布的报告分析了来自纽约和加州的 COVID 结果数据，这些数据约占
全国 COVID 死亡总数的六分之一。
这项研究有其侷限性——它是在 Omicron 流行之前完成的，并且没有将追加剂的资讯列
入考虑。 然而，它的确与其他国家的研究大致上一样。
是什么导致了 COVID 后的“脑雾”？ 新研究称病毒改变脊髓液
在 delta 病毒变体成为主要病毒株之前，疫苗在预防感染或严重疾病方面比对先前感染
的自然免疫更有效。 在 delta 病毒成为主要病毒株后，仅疫苗对病毒的抵抗力就变得更
弱，而自然免疫力变得更强。 根据这项研究，这在很大程度上可能是因为疫苗在 delta
病毒传播期间开始失效。
研究报告中写道：“重要的是，在高度传播的 Delta 变体占据主导地位后，感染衍生的
保护作用更大，这与许多人疫苗诱导的免疫力早期下降相吻合。”
在加州，从 2021 年 5 月 30 日开始的一周内，接种疫苗的人中，COVID-19发病率降低
了 19.9 倍，而未接种疫苗的人中有过 COVID-19 病例的发病率降低了 7.2 倍，接种疫
苗的人中的 COVID-19 发病率降低了 9.6 倍。 以前没有任何感染的未接种疫苗的人中的
COVID-19 病例。
研究称，三分之二的 COVID 疫苗副作用只是安慰剂效应。在 10 月 3 日，当 delta 变
种成为主要菌株时，它发生了变化。 以前没有 COVID-19 诊断的接种疫苗的人的病例率
仅比未接种疫苗、未感染的人低 6.2 倍——比Delta病毒流行前的效果低三倍。 在先前
诊断为未接种疫苗的人中，这一比例降低了 29 倍，在先前诊断COVID-19 的接种疫苗的
人中降低了 32.5 倍。
类似的数字来自纽约。
该研究还追踪了住院治疗的相同趋势。 在加州，对严重疾病的防护能力的提升更为显著
。 它表明先前感染提供的保护在Delta流行波中上升了九倍。
然而，使用 Omicron 进行自然免疫的有效性尚未完全清楚。 疾病预防控制中心警告说，
疫苗和自然免疫力都随着新的优势变种而下降。
5.完整新闻连结 (或短网址):
https://reurl.cc/akaqlX
6.备注:
所以之前打针都是在打心酸的？