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US - Media: C.D.C. Posts, Then Deletes, Data on Bird Flu Spread Between Cats and People? - February 6, 2025 - CDC posted on Feb. 20

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  • US - Media: C.D.C. Posts, Then Deletes, Data on Bird Flu Spread Between Cats and People? - February 6, 2025 - CDC posted on Feb. 20

    C.D.C. Posts, Then Deletes, Data on Bird Flu Spread Between Cats and People


    The data, which appeared fleetingly online on Wednesday, confirmed transmission in two households. Scientists called on the agency to release the full report.

    Listen to this article · 4:01 min Learn more

    Scientists have long known that cats are highly susceptible to the virus, but there had not previously been any documented cases of cats passing the virus to people.


    By Apoorva Mandavilli and Emily Anthes

    Feb. 6, 2025
    Updated 6:49 p.m. ET

    Cats that became infected with bird flu might have spread the virus to humans in the same household and vice versa, according to data that briefly appeared online in a report from the Centers for Disease Control and Prevention but then abruptly vanished. The data appear to have been mistakenly posted but includes crucial information about the risks of bird flu to people and pets.

    In one household, an infected cat might have spread the virus to another cat and to a human adolescent, according to a copy of the data table obtained by The New York Times. The cat died four days after symptoms began. In a second household, an infected dairy farmworker appears to have been the first to show symptoms, and a cat then became ill two days later and died on the third day.

    The table was the lone mention of bird flu in a scientific report published on Wednesday that was otherwise devoted to air quality and the Los Angeles County wildfires. The table was not present in an embargoed copy of the paper shared with news media on Tuesday, and is not included in the versions currently available online. The table appeared briefly at around 1 p.m., when the paper was first posted, but it is unclear how or why the error might have occurred.​

    more... https://www.nytimes.com/2025/02/06/h...ts-people.html

  • #2
    FluTrackers receives the MMWR via email list-serve and there was no mention of H5N1 or cats in the email.


    Please see our H5N1 cat thread. Pathfinder has recorded 85 cats. These would only be documented cats. The actual number of cats is unknown partly due to the numbers of feral cats.

    US H5N1 Avian Flu in Domestic Cats List


    Also please see:

    France - H5N1 has been detected in a significant proportion of cats according to a virologist

    ​A comment link

    Comment


    • #3

      Just a mention again....most federal employees are undergoing some job uncertainty so hard to know what has happened here.

      Comment


      • #4
        Also please see:

        Preprint: Avian Influenza Virus Infections in Felines: A Systematic Review of Two Decades of Literature

        Comment


        • #6
          CDC scientific report resumes publication after unprecedented pause

          But three studies about bird flu remain on hold even as the outbreak spreads.

          Updated
          February 6, 2025 at 2:47 p.m. ESTyesterday at 2:47 p.m. EST
          ...
          Three studies about the H5N1 bird flu virus were scheduled to be released in the weekly Morbidity and Mortality Weekly Report (MMWR) on Jan. 23, according to multiple CDC officials who spoke on the condition of anonymity out of fear of retaliation. But release of the results was abruptly halted when the Trump administration instructed federal health agencies to pause all external communications on Jan. 21, the administration’s first full day in office.
          ...
          Another study about bird flu in domestic cats was also not published. But a chart showing bird flu illness in cats and people was apparently included by accident in the report about Los Angeles wildfires, according to screenshots viewed by The Post. The chart was quickly removed.

          (Screenshot of a screenshot)

          Click image for larger version  Name:	image.png Views:	25 Size:	131.9 KB ID:	1007068
          ...


          ---------------------------------------

          It would have been unusual for three studies on avian influenza to be included in this MMWR report.

          In 2024, the CDC MMWR Weekly has only published 6 studies on the subject, the latest posted on November 7, 2024, 3 months ago. None were published in 2025 (before the new administration took power on January 20, 2025).​


          (Screenshots)


          Click image for larger version  Name:	image.png Views:	25 Size:	112.1 KB ID:	1007069
          Click image for larger version  Name:	image.png Views:	25 Size:	49.0 KB ID:	1007070

          https://www.cdc.gov/mmwr/mmwr_additi...pics=%22flu%22

          Comment


          • #7
            Thanks Pathfinder for that list. I agree. Historically, three is not believable.

            Comment


            • #8
              According to these emails obtained in July 2024 (see below), Michigan seems to be the origin of the unpublished report on cats.

              Knowing when the paper was accepted by the journal would be interesting.

              Hat tip to Treyfish for posting this article on October 25, 2024.​

              Go to post


              Exclusive: Emails Reveal How Health Departments Struggle To Track Human Cases of Bird Flu

              By Amy Maxmen October 25, 2024
              ...

              Cat Clues

              And then there were the pet cats. Unlike dozens of feral cats found dead on farms with outbreaks, these domestic cats didn’t roam around herds, lapping up milk that teemed with virus.

              In emails, Mid-Michigan health officials hypothesized that the cats acquired the virus from droplets, known as fomites, on their owners’ hands or clothing. “If we only could have gotten testing on the [REDACTED] household members, their clothing if possible, and their workplaces, we may have been able to prove human->fomite->cat transmission,” said a July 22 email.
              Click image for larger version  Name:	image.png Views:	2 Size:	109.4 KB ID:	1007953

              A July 22 email suggests that people might have infected their domestic cats with the bird flu, also called HPAI, for “highly pathogenic avian influenza,” but epidemiologists couldn’t determine how it happened because the animals’ owners had not been tested. This email was obtained through Freedom of Information Act records requests from KFF Health News to the Mid-Michigan District Health Department. (Screenshot by KFF Health News)

              Her colleague suggested they publish a report on the cat cases “to inform others about the potential for indirect transmission to companion animals.”

              Thijs Kuiken, a bird flu researcher in the Netherlands, at the Erasmus Medical Center in Rotterdam, said person-to-cat infections wouldn’t be surprising since felines are so susceptible to the virus. Fomites may have been the cause or, he suggested, an infected — but untested — owner might have passed it on.
              ...
              ​------------------------------------------​

              Hat tip to Mary Wilson for the link:

              Trump Administration’s Halt of CDC’s Weekly Scientific Report Stalls Bird Flu Studies

              By Amy Maxmen
              January 30, 2025
              ...​

              Click image for larger version  Name:	image.png Views:	2 Size:	368.9 KB ID:	1007954​In a July 22 email obtained by KFF Health News, an epidemiologist at the Michigan health department suggests publishing a report about people who potentially spread the bird flu virus to their pet cats. The paper was accepted by the journal of the Centers for Disease Control and Prevention. But its publication is on hold because of a Trump administration order to pause communications. (Screenshot by KFF Health News)

              ...https://kffhealthnews.org/news/artic...cked-meddling/

              ------------------------------------------

              Between April 18 and May 23, 2024, 8 cats in Michigan tested positive for H5N1.

              Detections of Highly Pathogenic Avian Influenza in Mammals

              State County Date Collected Date Detected HPAI Strain Species
              Michigan Ottawa 4/18/2024 7/5/2024 EA/AM H5N1 Domestic cat
              Michigan Ionia 5/20/2024 6/4/2024 EA/AM H5N1 Domestic cat
              Michigan Clinton 5/23/2024 6/3/2024 EA H5N1 Domestic cat
              Michigan Clinton 5/17/2024 5/23/2024 EA H5N1 Domestic cat
              Michigan Ottawa 4/19/2024 5/17/2024 EA/AM H5N1 Domestic cat
              Michigan Ottawa 4/19/2024 5/17/2024 EA/AM H5N1 Domestic cat
              Michigan Ionia 4/25/2024 5/2/2024 EA/AM H5N1 Domestic cat
              Michigan Isabella 4/19/2024 4/24/2024 EA H5N1 Domestic cat


              Comment


              • #9
                Posted today:

                CDC - Highly Pathogenic Avian Influenza A(H5N1) Virus Infection of Indoor Domestic Cats Within Dairy Industry Worker Households — Michigan, May 2024

                Comment

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