1.媒體來源:
FOX31 Denver
2.記者署名:
D.J Summers
3.完整新聞標題:
CDC: Natural immunity stronger than vaccines alone during delta wave
在Delta流行期間，人體自然免疫功能比打疫苗強六倍！
4.完整新聞內文:
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）——根據美國疾病控制和預防中心的一份新報告，Delta病毒流行期間的自
然免疫力是疫苗接種的六倍。
這份於 1 月 19 日發布的報告分析了來自紐約和加州的 COVID 結果數據，這些數據約佔
全國 COVID 死亡總數的六分之一。
這項研究有其侷限性——它是在 Omicron 流行之前完成的，並且沒有將追加劑的資訊列
入考慮。 然而，它的確與其他國家的研究大致上一樣。
是什麼導致了 COVID 後的“腦霧”？ 新研究稱病毒改變脊髓液
在 delta 病毒變體成為主要病毒株之前，疫苗在預防感染或嚴重疾病方面比對先前感染
的自然免疫更有效。 在 delta 病毒成為主要病毒株後，僅疫苗對病毒的抵抗力就變得更
弱，而自然免疫力變得更強。 根據這項研究，這在很大程度上可能是因為疫苗在 delta
病毒傳播期間開始失效。
研究報告中寫道：「重要的是，在高度傳播的 Delta 變體佔據主導地位後，感染衍生的
保護作用更大，這與許多人疫苗誘導的免疫力早期下降相吻合。」
在加州，從 2021 年 5 月 30 日開始的一週內，接種疫苗的人中，COVID-19發病率降低
了 19.9 倍，而未接種疫苗的人中有過 COVID-19 病例的發病率降低了 7.2 倍，接種疫
苗的人中的 COVID-19 發病率降低了 9.6 倍。 以前沒有任何感染的未接種疫苗的人中的
COVID-19 病例。
研究稱，三分之二的 COVID 疫苗副作用只是安慰劑效應。在 10 月 3 日，當 delta 變
種成為主要菌株時，它發生了變化。 以前沒有 COVID-19 診斷的接種疫苗的人的病例率
僅比未接種疫苗、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
診斷為未接種疫苗的人中，這一比例降低了 29 倍，在先前診斷COVID-19 的接種疫苗的
人中降低了 32.5 倍。
類似的數字來自紐約。
該研究還追踪了住院治療的相同趨勢。 在加州，對嚴重疾病的防護能力的提升更為顯著
。 它表明先前感染提供的保護在Delta流行波中上升了九倍。
然而，使用 Omicron 進行自然免疫的有效性尚未完全清楚。 疾病預防控制中心警告說，
疫苗和自然免疫力都隨著新的優勢變種而下降。
5.完整新聞連結 (或短網址):
https://reurl.cc/akaqlX
6.備註:
所以之前打針都是在打心酸的？