The new coronavirus infected people in the U.S. in mid-December 2019, a few weeks before it was officially identified in China and about a month earlierthan public health authorities found the first U.S. case, according to a government study published Monday.
The findings significantly strengthen evidence suggesting the virus was spreading around the world well before public health authorities and researchers became aware, upending initial thinking about how early and quickly it emerged.
Scientists at the U.S. Centers for Disease Control and Prevention found evidence of infection in 106 of 7,389 blood donations collected by the American Red Cross from residents in nine states across the U.S., according to the study published online in the journal Clinical Infectious Diseases.
NEWSLETTER SIGN-UP Coronavirus Daily Briefing and Health Weekly Get an early-morning briefing about the coronavirus each weekday and a weekly Health newsletter when the crisis abates.
PREVIEW SUBSCRIBE The scientists based their study on blood samples that theAmerican Red Cross collected between Dec. 13 and Jan. 17 and later sent to the CDC for testing to see if any had antibodies to the new coronavirus, which is named SARS-CoV-2.
“SARS-CoV-2 infections may have been present in the U.S. in December 2019, earlier than previously recognized,” the authors wrote.
A person’s immune system develops antibodies when exposed to a pathogen like a virus to fight it off. Their presence suggests exposure to a virus.
In analyzing the blood samples, the CDC scientists found antibodies in 39 samples from California, Oregon and Washington state collected between December 13 and December 16.
The findings suggest there were isolated cases of coronavirus infection on the U.S. West Coast in mid-December, the scientists wrote.
They also found 67 samples with antibodies in Massachusetts, Michigan, Wisconsin or Iowa, and Connecticut or Rhode Island collected between Dec. 30and Jan. 17.
Those findings indicated that cases were more dispersed—yet still isolated —by early this year.
Health experts say having a vaccine is just one front in a two-front battle against Covid-19. The other is effective treatments for those who are already sick with the disease. WSJ breaks down the three most promising types in development. Photo Illustration: Jacob Reynolds/WSJ. The scientistssaid they ruled out the possibility that the antibodies they found had developed to fight off other coronaviruses, which cause the common cold. They did that by looking for antibodies specific to the new coronavirus in 90 of the samples.
They said they found antibodies specific to SARS-CoV-2 in 84 of the samples,or nearly all of them.
The results add to growing evidence suggesting Covid-19 was present outside of China earlier than previously known. Researchers found the virus, for example, in a retrospective analysis of a specimen from a patient who was hospitalized in France on Dec. 27, 2019.
The first Covid-19 case in the U.S. was reported on Jan. 19, two days after testing for the virus began there, the CDC researchers said. A young man returning from China a few days earlier suspected he might have the disease and sought care for his symptoms.
Two other people who were subsequently diagnosed in the U.S. also developed symptoms in mid-January.
Earlier studies have also suggested that Covid-19 had moved beyond just isolated cases and was spreading in communities in the U.S. by mid- to late-January, though epidemiologists say that the virus likely didn’t circulate widely in communities until later in February.
The new study shows the value of screening routinely collected blood samplesfor evidence of viruses spreading in a population, the CDC authors said, adding that the agency is continuing to conduct surveillance for Covid-19 this way.
Not only did Covid-19 likely appear in the U.S. earlier than previously known, but researchers have found evidence that the virus is far more widespread in the U.S. than testing indicates.
Some 53 million people in the U.S. likely had contracted Covid-19 by the endof September, according to a modeling estimate published last week by CDC researchers. Roughly 6.9 million infections had been confirmed within that time period, suggesting that roughly one in every eight cases was identified.
Yet the majority of the U.S. population hasn’t been infected. On Nov. 24, aCDC study published in the journal JAMA Internal Medicine estimated that fewer than 1% to 23% of people in the U.S. had antibodies, depending on the location.
A significantly higher number of patients with respiratory complaints and diseases starting in late December 2019 and continuing through February 2020suggests community spread of SARS-CoV-2 prior to established clinical awareness and testing capabilities.
引起关注时，早就大面积传染了。据说去年美国的流感在10就爆发了，真是早啊，尤其是去年还是暖冬！很显然是新冠，但是被当作了流感，实在是美国医生没有SARS的经验，一律当流感处理了。反正死人也不多么！而且流感也死人么！ 【 在 beijingren4 () 的大作中提到: 】 : https://www.jmir.org/2020/9/e21562/pdf : Conclusion from the study : : A significantly higher number of patients with respiratory complaints and : diseases starting in late December 2019 and continuing through February 2020 : suggests community spread of SARS-CoV-2 prior to established clinical : awareness and testing capabilities.
引起关注时，早就大面积传染了。据说去年美国的流感在10就爆发了，真是早啊，尤其是去年还是暖冬！很显然是新冠，但是被当作了流感，实在是美国医生没有SARS的经验，一律当流感处理了。反正死人也不多么！而且流感也死人么！ 【 在 beijingren4 () 的大作中提到: 】 : https://www.jmir.org/2020/9/e21562/pdf : Conclusion from the study : : A significantly higher number of patients with respiratory complaints and : diseases starting in late December 2019 and continuing through February 2020 : suggests community spread of SARS-CoV-2 prior to established clinical : awareness and testing capabilities.
美国《华尔街日报》报道，美国疾控中心科学家们11月30日发布的一份政府研究显示，早在2019年12月中旬，新冠病毒就已出现在美国，这比中国正式发现新冠病毒提前数周，也比美国公共卫生部门发现第一例美国本土确诊病例要早一个月。
腆着个脸，开始承认了。。。
去年9月就有抗体了
看来以后发现个病 打死不能承认；承认了大家都赖你
这个教训太深刻了！西班牙流感，据说也是美国起源，但是西班牙人重视，结果污名化西班牙；H1N1起源于美国，结美国摁着不说，等到墨西哥爆发了，立马就说是墨西哥起源；艾滋病是美国传向全视界的，非要追到一个什么什么非洲人身上才算罢休！
【 在 Qiguoji (我是个清纯的猥琐男) 的大作中提到: 】
: 看来以后发现个病 打死不能承认；承认了大家都赖你
血清抗体不具特异性，最多算是条线索，不是证据
必须有全病毒测序才能算是证据
文章说了找的是新冠特异性抗体
【 在 vigo (vigo) 的大作中提到: 】
: 血清抗体不具特异性，最多算是条线索，不是证据
: 必须有全病毒测序才能算是证据
全世界要准备甩锅印度了，吼吼吼！！！
The new coronavirus infected people in the U.S. in mid-December 2019, a few
weeks before it was officially identified in China and about a month earlierthan public health authorities found the first U.S. case, according to a
government study published Monday.
The findings significantly strengthen evidence suggesting the virus was
spreading around the world well before public health authorities and
researchers became aware, upending initial thinking about how early and
quickly it emerged.
Scientists at the U.S. Centers for Disease Control and Prevention found
evidence of infection in 106 of 7,389 blood donations collected by the
American Red Cross from residents in nine states across the U.S., according
to the study published online in the journal Clinical Infectious Diseases.
NEWSLETTER SIGN-UP Coronavirus Daily Briefing and Health Weekly Get an early-morning briefing about the coronavirus each weekday and a weekly Health
newsletter when the crisis abates.
PREVIEW SUBSCRIBE The scientists based their study on blood samples that theAmerican Red Cross collected between Dec. 13 and Jan. 17 and later sent to
the CDC for testing to see if any had antibodies to the new coronavirus,
which is named SARS-CoV-2.
“SARS-CoV-2 infections may have been present in the U.S. in December 2019,
earlier than previously recognized,” the authors wrote.
A person’s immune system develops antibodies when exposed to a pathogen
like a virus to fight it off. Their presence suggests exposure to a virus.
In analyzing the blood samples, the CDC scientists found antibodies in 39
samples from California, Oregon and Washington state collected between
December 13 and December 16.
The findings suggest there were isolated cases of coronavirus infection on
the U.S. West Coast in mid-December, the scientists wrote.
They also found 67 samples with antibodies in Massachusetts, Michigan,
Wisconsin or Iowa, and Connecticut or Rhode Island collected between Dec. 30and Jan. 17.
Those findings indicated that cases were more dispersed—yet still isolated
—by early this year.
Health experts say having a vaccine is just one front in a two-front battle
against Covid-19. The other is effective treatments for those who are
already sick with the disease. WSJ breaks down the three most promising
types in development. Photo Illustration: Jacob Reynolds/WSJ. The scientistssaid they ruled out the possibility that the antibodies they found had
developed to fight off other coronaviruses, which cause the common cold.
They did that by looking for antibodies specific to the new coronavirus in
90 of the samples.
They said they found antibodies specific to SARS-CoV-2 in 84 of the samples,or nearly all of them.
The results add to growing evidence suggesting Covid-19 was present outside
of China earlier than previously known. Researchers found the virus, for
example, in a retrospective analysis of a specimen from a patient who was
hospitalized in France on Dec. 27, 2019.
The first Covid-19 case in the U.S. was reported on Jan. 19, two days after
testing for the virus began there, the CDC researchers said. A young man
returning from China a few days earlier suspected he might have the disease
and sought care for his symptoms.
Two other people who were subsequently diagnosed in the U.S. also developed
symptoms in mid-January.
Earlier studies have also suggested that Covid-19 had moved beyond just
isolated cases and was spreading in communities in the U.S. by mid- to late-January, though epidemiologists say that the virus likely didn’t circulate
widely in communities until later in February.
The new study shows the value of screening routinely collected blood samplesfor evidence of viruses spreading in a population, the CDC authors said,
adding that the agency is continuing to conduct surveillance for Covid-19
this way.
Not only did Covid-19 likely appear in the U.S. earlier than previously
known, but researchers have found evidence that the virus is far more
widespread in the U.S. than testing indicates.
Some 53 million people in the U.S. likely had contracted Covid-19 by the endof September, according to a modeling estimate published last week by CDC
researchers. Roughly 6.9 million infections had been confirmed within that
time period, suggesting that roughly one in every eight cases was identified.
Yet the majority of the U.S. population hasn’t been infected. On Nov. 24, aCDC study published in the journal JAMA Internal Medicine estimated that
fewer than 1% to 23% of people in the U.S. had antibodies, depending on the
location.
Write to Betsy McKay at [email protected]
Conclusion from the study :
A significantly higher number of patients with respiratory complaints and
diseases starting in late December 2019 and continuing through February 2020suggests community spread of SARS-CoV-2 prior to established clinical
awareness and testing capabilities.
美国疾控中心的索男科流行病学家们们立功了
今年一月和去年一月，小孩学校里有传染性非常强的流感，小孩两次都得了，而且都是老大得了几天后老二跟着生病，咳嗽发烧比以往流感厉害得多，人非常虚弱，几乎走不动路。我事后怀疑那就是新冠或类似病毒
今年一月和去年一月，小孩学校里有传染性非常强的流感，小孩两次都得了，而且都是老大得了几天后老二跟着生病，咳嗽发烧比以往流感厉害得多，人非常虚弱，几乎走不动路。我事后怀疑那就是新冠或类似病毒
热烈祝贺兔子甩锅成功! 新冠起源已经有美国,西班牙,意大利多处早于中国武汉!
引起关注时，早就大面积传染了。据说去年美国的流感在10就爆发了，真是早啊，尤其是去年还是暖冬！很显然是新冠，但是被当作了流感，实在是美国医生没有SARS的经验，一律当流感处理了。反正死人也不多么！而且流感也死人么！
【 在 beijingren4 () 的大作中提到: 】
: https://www.jmir.org/2020/9/e21562/pdf
: Conclusion from the study :
: A significantly higher number of patients with respiratory complaints and
: diseases starting in late December 2019 and continuing through February
2020
: suggests community spread of SARS-CoV-2 prior to established clinical
: awareness and testing capabilities.
引起关注时，早就大面积传染了。据说去年美国的流感在10就爆发了，真是早啊，尤其是去年还是暖冬！很显然是新冠，但是被当作了流感，实在是美国医生没有SARS的经验，一律当流感处理了。反正死人也不多么！而且流感也死人么！
【 在 beijingren4 () 的大作中提到: 】
: https://www.jmir.org/2020/9/e21562/pdf
: Conclusion from the study :
: A significantly higher number of patients with respiratory complaints and
: diseases starting in late December 2019 and continuing through February
2020
: suggests community spread of SARS-CoV-2 prior to established clinical
: awareness and testing capabilities.
有没有丧失嗅觉味觉
【在 snailhouse(寒雪拭峰)的大作中提到：】
：今年一月和去年一月，小孩学校里有传染性非常强的流感，小孩两次都得了，而且都是老大得了几天后老二跟着生病，咳嗽发烧比以往流感厉害得多，人非常虚弱，几乎走不动路。我事后怀疑那就是新冠或类似病毒
实锤了。甩锅大概率成功了。
【 在 Bifujian (哈哈儿) 的大作中提到: 】
: 热烈祝贺兔子甩锅成功! 新冠起源已经有美国,西班牙,意大利多处早于中国武汉!
其实这件事也有好的一面：中国政府赢得了全国人民的支持，充分暴露了欧美印度这些所谓民主国家的无能低效，无情揭露了台巴子、轮子这种杂碎的丑恶嘴脸！
【 在 piggybank (没钱的小猪猪) 的大作中提到: 】
: 这个教训太深刻了！西班牙流感，据说也是美国起源，但是西班牙人重视，结果污名化
: 西班牙；H1N1起源于美国，结美国摁着不说，等到墨西哥爆发了，立马就说是墨西哥起
: 源；艾滋病是美国传向全视界的，非要追到一个什么什么非洲人身上才算罢休！
句句这是对cdc失控了。丫现在是嘛事不管，彻底放飞
没错，邓产党对洋人幼稚到发指
【在 Qiguoji(我是个清纯的猥琐男)的大作中提到：】
：看来以后发现个病 打死不能承认；承认了大家都赖你
这次误打误撞，居然帮了中国。
【 在 piggybank (没钱的小猪猪) 的大作中提到: 】
: 这个教训太深刻了！西班牙流感，据说也是美国起源，但是西班牙人重视，结果污名化
: 西班牙；H1N1起源于美国，结美国摁着不说，等到墨西哥爆发了，立马就说是墨西哥起
: 源；艾滋病是美国传向全视界的，非要追到一个什么什么非洲人身上才算罢休！
靠，百分百，是美帝军运会投毒
为啥海鲜市场最集中爆？
【 在 Cadillaclee (cadillaclee) 的大作中提到: 】
: 靠，百分百，是美帝军运会投毒
没看到最近都是海鲜包装发现有病毒么?
【 在 busted (busted) 的大作中提到: 】
: 为啥海鲜市场最集中爆？
"Well, it only proves that China Virus has spread to other parts of the
world earlier than people thought," Proud China Virus will argue.
美国精英份子群体开始收拾残局，先端正态度，后陪着笑脸向中国讨要实物，脏水可以全部沷给川普。
没有实物支撑，这种规模的疫情，收拾个P，说不定疫苗也只能靠中国的。
中国估计也只能帮，美国收拾好疫情，对中国也是好事。省的一天到晚输入病毒没完没了。
【 在 zibao (友谊花开万里香) 的大作中提到: 】
: 句句这是对cdc失控了。丫现在是嘛事不管，彻底放飞
说的是2020 sep吧？
【 在 Carraway (核弹共振掀翻美西板块原创者) 的大作中提到: 】
: https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2773576
: 去年9月就有抗体了
牛屎报原文链接在此
https://www.wsj.com/articles/covid-19-likely-in-u-s-in-mid-december-2019-cdc-scientists-report-11606782449
CDC不作为啊
麻痹，80国联军可以向美国索赔了
【 在 tmbb2010 (tmbb2010) 的大作中提到: 】
: 美国《华尔街日报》报道，美国疾控中心科学家们11月30日发布的一份政府研究显示，
: 早在2019年12月中旬，新冠病毒就已出现在美国，这比中国正式发现新冠病毒提前数周
: ，也比美国公共卫生部门发现第一例美国本土确诊病例要早一个月。
巴西也有早于中国武汉的
【 在 Bifujian (哈哈儿) 的大作中提到: 】
: 热烈祝贺兔子甩锅成功! 新冠起源已经有美国,西班牙,意大利多处早于中国武汉!
【 在 piggybank (没钱的小猪猪) 的大作中提到: 】
: 这个教训太深刻了！西班牙流感，据说也是美国起源，但是西班牙人重视，结果污名化
: 西班牙；H1N1起源于美国，结美国摁着不说，等到墨西哥爆发了，立马就说是墨西哥起
: 源；艾滋病是美国传向全视界的，非要追到一个什么什么非洲人身上才算罢休！
不是西班牙重视，当时是第一次世界大战，美国也是通过美军把疫情传染到欧洲的。参战国都有新闻管制，西班牙没有参战，也没有新闻管制，就傻乎乎的报道了实情，结果锅随后就到，一背就是100多年
讨要实物？先赔5万亿美元啊，白垃圾们不是说谁的责任谁赔这个数么？
【 在 tmbb2010 (tmbb2010) 的大作中提到: 】
: 美国精英份子群体开始收拾残局，先端正态度，后陪着笑脸向中国讨要实物，脏水可以
: 全部沷给川普。
: 没有实物支撑，这种规模的疫情，收拾个P，说不定疫苗也只能靠中国的。
: 中国估计也只能帮，美国收拾好疫情，对中国也是好事。省的一天到晚输入病毒没完没
: 了。