Home Health News New CDC study suggests COVID-19 may have been in the US in December 2019 – The Boston Globe

New CDC study suggests COVID-19 may have been in the US in December 2019 – The Boston Globe

6 min read


A line of people waited in the rain for a COVID-19 test at the Cataldo site on Elm Street in Everett.Suzanne Kreiter/Globe staff

Although the earliest cases of coronavirus were first identified in the United States this past January, the findings of a government study published Monday suggest that people may have first been infected in December.

The conclusion reached by scientists at the Centers for Disease Control and Prevention bolsters prior evidence that the virus may have begun spreading across the globe earlier than first believed — including one earlier model from researchers at Northeastern University that projected more than 100 people in Boston had likely been exposed by mid-February.

The first known case of coronavirus was detected in Wuhan, China, in December 2019. In the United States, the first infection was reported in mid-January. Two other patients in the US had illness onset dates of Jan. 14, 2020, according to the study, which was published in the journal of Clinical Infectious Diseases.

Boston, meanwhile, was one of the first cities nationwide to report that someone had been infected with the virus: a student from the University of Massachusetts Boston who had traveled from Wuhan.

But the new study suggests that the virus may have been present earlier than that.

“Some reports have suggested the introduction of SARS-CoV-2 into the [United States] may have occurred earlier than initially recognized, though widespread community transmission was not likely until late February,” scientists wrote.

To determine whether antibodies from SARS-CoV-2 — the virus that causes COVID-19 — were present prior to the first identified case in the United States, researchers tested archived samples from 7,389 routine blood donations collected by the American Red Cross.

“Serologic testing has been previously used to estimate introduction of viral infections into populations, including for HIV,” scientists wrote.

The samples analyzed were gathered by the organization during the period from Dec. 13, 2019, through Jan. 17, 2020, from donors who lived in nine different states: California, Connecticut, Iowa, Massachusetts, Michigan, Oregon, Rhode Island, Washington, and Wisconsin.

Of the more than 7,000 samples tested by scientists at the CDC, 106 — or 1.4 percent — had evidence of infection, according to the study.

“These findings suggest that SARS-CoV-2 may have been introduced into the United States prior to January 19, 2020,” scientists wrote.

But the study also found “detection of reactive antibodies” in the specimens tested, indicating that the virus may have surfaced even earlier.

For instance, there was potentially cross reactivity with human coronavirus infection other than SARS-CoV-2, according to the study.

Based on data collected, however, scientists wrote, “at least some of the reactive blood donor sera could be due” to previous infection from the virus.

Scientists addressed other limitations of the study as well, including the fact that none of the sera can be considered “true positives.” Furthermore, the donations included in the report “may not be representative of all blood donors or donations in these states and the findings may not be generalizable to all blood donors during the donation dates reported here,” scientists wrote.

As a result, population-based estimates or inferences on the magnitude of infections on a “national or state level” cannot be made, according to the study.

Additional studies involving the analyses of human specimens are needed to “further corroborate the present findings,” which detected the presence of antibodies specific to SARS-CoV-2 as early as mid-December 2019, scientists wrote.

The CDC is continuing to partner with both federal and non-governmental partners “to conduct ongoing surveillance using blood donations and clinical laboratory samples for SARS-CoV-2 infection in multiple sites,” across the country, according to the study.

Shannon Larson can be reached at shannon.larson@globe.com. Follow her on Twitter @shannonlarson98.

Let’s block ads! (Why?)

Source link


  1. Alene Risewick

    January 12, 2021 at 5:13 am

    I do like the manner in which you have framed this specific problem and it does present us a lot of fodder for consideration. Nevertheless, through what precisely I have personally seen, I basically hope as the actual commentary pack on that people today remain on issue and don’t start on a soap box associated with the news du jour. Still, thank you for this exceptional point and whilst I do not really go along with this in totality, I value your viewpoint.


  2. Kayleen Wickline

    June 1, 2021 at 6:57 am

    This was awesome! I would like you to clean up all this spam though


  3. Lenard Sudan

    June 4, 2021 at 11:14 am

    This was great! I would like you to clean up all this spam though


  4. Reuben Ober

    June 22, 2021 at 12:43 am

    Have you ever heard of second life (sl for short). It is basically a online game where you can do anything you want. Second life is literally my second life (pun intended lol). If you want to see more you can see these second life websites and blogs


  5. can you use i in an argumentative essay

    November 13, 2021 at 6:08 am

    Thank you so much for sharing your cool webpage. http://multiessay.com


  6. real casino online for real money

    November 16, 2021 at 3:08 pm

    Thanks very beneficial. Will certainly share
    site with my buddies. https://casinogamesmachines.com/


  7. a sex games

    November 19, 2021 at 11:09 pm

    Really enlightening, looking forward to
    visiting again. https://sexygamess.com/


  8. keto diet vegetarian

    November 20, 2021 at 12:57 pm

    Just wished to tell you Now i’m grateful that i came in your web page. https://ketogendiet.net/


  9. mobile sex games

    November 20, 2021 at 3:59 pm

    Wow because this is very good work! Congrats and keep it up. https://sexgamesx.net/


  10. keto diet for epilepsy

    November 21, 2021 at 5:13 pm

    Thanks extremely helpful. Will certainly share site with my
    pals. https://ketogenicdiets.net/


  11. keto diet results 8 weeks

    November 22, 2021 at 3:42 am

    Very good web page you’ve gotten right here. https://ketogenicdietinfo.com/


  12. keto cereal recipe

    November 22, 2021 at 9:52 am

    Great looking internet site. Assume you did a great deal
    of your own coding. https://ketogendiets.com/


  13. rhode island free chat gay

    December 29, 2021 at 7:09 am

    Many thanks for sharing your amazing web page. https://gay-buddies.com/


  14. chat gay joven

    December 30, 2021 at 9:49 am

    Many thanks extremely beneficial. Will certainly share site with my friends. https://gaypridee.com/


  15. free x rated slots

    January 20, 2022 at 7:05 pm

    ali baba slots game free free online slots site old
    vegas world slots free x rated slots


  16. slotmachinescasinos.com

    February 2, 2022 at 1:59 pm

    best slots near me 777 slots free online slots free slotmachinescasinos.com


  17. slots free single

    February 3, 2022 at 1:09 am

    free slots black widow igt brian christopher slots aristocrat slots slots free single


  18. vdeos of live slots

    February 3, 2022 at 9:15 am

    wizard of oz slots free play great africa slots aol slots lounge vdeos of live slots


  19. baba wild slots casino

    February 4, 2022 at 12:12 am

    play free vegas slots seven fortune slots red hawk slots
    tournament baba wild slots casino


  20. reference

    April 17, 2023 at 1:50 pm

    … [Trackback]

    […] Info on that Topic: blog.sleepingrex.com/2020/12/01/new-cdc-study-suggests-covid-19-may-have-been-in-the-us-in-december-2019-the-boston-globe/ […]


  21. click here to find out more

    May 5, 2023 at 12:31 pm

    … [Trackback]

    […] Information on that Topic: blog.sleepingrex.com/2020/12/01/new-cdc-study-suggests-covid-19-may-have-been-in-the-us-in-december-2019-the-boston-globe/ […]


  22. sig mcx spear for sale

    May 8, 2023 at 2:27 am

    … [Trackback]

    […] Read More Info here to that Topic: blog.sleepingrex.com/2020/12/01/new-cdc-study-suggests-covid-19-may-have-been-in-the-us-in-december-2019-the-boston-globe/ […]


Leave a Reply

Your email address will not be published. Required fields are marked *

Check Also

Did Nets’ Kevin Durant Undergo Crazy Body Transformation? (Photos) – Game 7 – Game7

[ad_1] Brooklyn Nets star Kevin Durant is already arguably the best player in the NBA. Alt…