* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Sunday, August 3, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Sens. Blackburn, Warnock introduce CREATE Act to provide tax relief to music creators – Yahoo Home

    Sens. Blackburn and Warnock Launch CREATE Act to Deliver Tax Relief for Music Creators

    That’s (Political) Entertainment: When Theatre Meets Politics

    Future Script: How Generative AI Is Changing Collective Bargaining in the Entertainment Industry – Jackson Lewis

    Future Script: How Generative AI Is Transforming Collective Bargaining in Entertainment

    The SBA’s live-entertainment bailout was supposed to end two years ago. We still don’t know how $1.5 billion was spent. – Yahoo Home

    $1.5 Billion Live-Entertainment Bailout: Two Years Later, Where Did the Money Go?

    Wall Street Bets: Caesars, Golden Entertainment, Churchill Downs, GLPI, Boyd – CDC Gaming

    Top Wall Street Bets: Caesars, Golden Entertainment, Churchill Downs, GLPI, and Boyd Take Center Stage

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Livonia police use grappler technology to stop drunk driver – ClickOnDetroit | WDIV Local 4

    Livonia Police Deploy Grappler Technology to Safely Stop Drunk Driver

    Emory orthopaedic surgeons use robotic technology to transform knee replacement surgery – Emory News Center

    How Robotic Technology is Revolutionizing Knee Replacement Surgery

    Cognizant Technology Solutions Corp (CTSH) Q2 2025 Earnings Call Highlights: Strong Revenue … – Yahoo.co

    Cognizant Q2 2025 Earnings: Impressive Revenue Growth and Key Takeaways

    Revving Up The U.S. Technology Engine – Forbes

    Revving Up The U.S. Technology Engine – Forbes

    More than just a hockey player – Rochester Institute of Technology Athletics

    Beyond the Ice: The Inspiring Journey of a Remarkable Athlete from Rochester Institute of Technology

    Smart Logistics in Warehousing – From Legacy Protocols to Green IoT – How Technology Is Reshaping the Sustainable Supply Chain – Logistics Viewpoints –

    Smart Logistics in Warehousing – From Legacy Protocols to Green IoT – How Technology Is Reshaping the Sustainable Supply Chain – Logistics Viewpoints –

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Sens. Blackburn, Warnock introduce CREATE Act to provide tax relief to music creators – Yahoo Home

    Sens. Blackburn and Warnock Launch CREATE Act to Deliver Tax Relief for Music Creators

    That’s (Political) Entertainment: When Theatre Meets Politics

    Future Script: How Generative AI Is Changing Collective Bargaining in the Entertainment Industry – Jackson Lewis

    Future Script: How Generative AI Is Transforming Collective Bargaining in Entertainment

    The SBA’s live-entertainment bailout was supposed to end two years ago. We still don’t know how $1.5 billion was spent. – Yahoo Home

    $1.5 Billion Live-Entertainment Bailout: Two Years Later, Where Did the Money Go?

    Wall Street Bets: Caesars, Golden Entertainment, Churchill Downs, GLPI, Boyd – CDC Gaming

    Top Wall Street Bets: Caesars, Golden Entertainment, Churchill Downs, GLPI, and Boyd Take Center Stage

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Livonia police use grappler technology to stop drunk driver – ClickOnDetroit | WDIV Local 4

    Livonia Police Deploy Grappler Technology to Safely Stop Drunk Driver

    Emory orthopaedic surgeons use robotic technology to transform knee replacement surgery – Emory News Center

    How Robotic Technology is Revolutionizing Knee Replacement Surgery

    Cognizant Technology Solutions Corp (CTSH) Q2 2025 Earnings Call Highlights: Strong Revenue … – Yahoo.co

    Cognizant Q2 2025 Earnings: Impressive Revenue Growth and Key Takeaways

    Revving Up The U.S. Technology Engine – Forbes

    Revving Up The U.S. Technology Engine – Forbes

    More than just a hockey player – Rochester Institute of Technology Athletics

    Beyond the Ice: The Inspiring Journey of a Remarkable Athlete from Rochester Institute of Technology

    Smart Logistics in Warehousing – From Legacy Protocols to Green IoT – How Technology Is Reshaping the Sustainable Supply Chain – Logistics Viewpoints –

    Smart Logistics in Warehousing – From Legacy Protocols to Green IoT – How Technology Is Reshaping the Sustainable Supply Chain – Logistics Viewpoints –

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Health

‘Swine flu’ strain has passed from humans to swine nearly 400 times since 2009, study finds

July 27, 2023
in Health
‘Swine flu’ strain has passed from humans to swine nearly 400 times since 2009, study finds
Share on FacebookShare on Twitter

“Swine flu” strain has passed from humans to swine nearly 400 times since 2009

Dr. Giovana Ciacci Zanella swabbing a pig snout to gather samples to test for influenza A virus. Credit: M.Marti and A.Grimes, USDA (CC-BY 2.0, creativecommons.org/licenses/by/2.0/

A new study of the strain of influenza A responsible for the 2009 H1N1 pandemic—pdm09—shows that the virus has passed from humans to swine about 370 times since 2009, and subsequent circulation in swine has resulted in the evolution of pdm09 variants that then jumped from swine to humans. Alexey Markin of the U.S. Department of Agriculture-Agricultural Research Service and colleagues present these findings in the open-access journal PLOS Pathogens.

Influenza A can cause the flu in humans, birds, swine, and some other mammals. In 2009 and 2010, a pandemic caused by pdm09 resulted in thousands of human deaths around the world. Since then, as demonstrated in prior studies, pdm09 has repeatedly passed from humans to swine, and circulation of the virus among swine leads to evolutionary changes in pdm09 that could make it more likely to cross back and infect humans.

To better understand this risk, Markin and colleagues analyzed pdm09 transmission data between 2009 and 2021. They also investigated how these interspecies events may have affected the genetic diversity of the virus in swine and the risk of subsequent human infection.

The analysis showed that, since 2009, pdm09 has crossed from humans to swine about 370 separate times, with most of these events occurring when pdm09 burden was highest among humans. In 2020 and 2021, during the COVID-19 pandemic, pdm09 circulation among humans dropped, but pdm09 circulation persisted in swine as a result of about 150 human-to-swine transmissions between 2018 and 2020.

The researchers found that most human-to-swine transmission events were isolated, but a few led to sustained circulation of different pdm09 genetic lineages among swine in the U.S. These swine-circulating variants appeared to be genetically poor matches for human seasonal vaccines, suggesting that the vaccines would have provided scant protection against them. The analysis also showed that persistent pdm09 circulation among swine was associated with at least five instances of swine-to-human transmission.

These findings add to mounting evidence that managing influenza A infection in people who work with swine can help prevent transmission to pigs, and subsequently reduce the risk of spread back to humans.

The authors said, “Controlling influenza A virus infection in humans can minimize spillover of viruses into pigs and reduce the diversity of viruses circulating in swine populations. Limiting virus diversity in pigs can minimize the emergence of novel viruses and the potential for swine-to-human transmission of influenza A virus.”

More information:
Markin A, Reverse-zoonoses of 2009 H1N1 pandemic influenza A viruses and evolution in United States swine results in viruses with zoonotic potential, PLOS Pathogens (2023). DOI: 10.1371/journal.ppat.1011476 , journals.plos.org/plospathogen … journal.ppat.1011476

Citation:
‘Swine flu’ strain has passed from humans to swine nearly 400 times since 2009, study finds (2023, July 27)
retrieved 27 July 2023
from https://medicalxpress.com/news/2023-07-swine-flu-strain-humans.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Medical Xpress – https://medicalxpress.com/news/2023-07-swine-flu-strain-humans.html

Tags: healthStrainSwine
Previous Post

The honourees: Canada’s Top Women in Cybersecurity

Next Post

Complex brain cell connections in the cerebellum more common than believed

Endemism shapes viral ecology and evolution in globally distributed hydrothermal vent ecosystems – Nature

Endemism shapes viral ecology and evolution in globally distributed hydrothermal vent ecosystems – Nature

August 2, 2025
Scientists Finally Reveal the Hidden Trigger Behind Lightning Strikes

Scientists Finally Reveal the Hidden Trigger Behind Lightning Strikes

August 2, 2025
Young minds explore science at NDSU summer research program – InForum

Young Minds Ignite Curiosity at NDSU Summer Science Research Program

August 2, 2025
PlayStation Preparing to Release More Games on Xbox – Report – PlayStation LifeStyle

PlayStation Gears Up to Launch Exciting New Games on Xbox

August 2, 2025
Lexington County hits a home run hosting the Diamond Youth Baseball World Series – WLTX

Lexington County Hits a Home Run Hosting the Diamond Youth Baseball World Series

August 2, 2025
Some rural Texans see THC as a lifeline for their health and economy – The Texas Tribune

How THC Is Revolutionizing Health and Sparking Economic Growth in Rural Texas

August 2, 2025
Fox Corporation Acquires One-Third Interest in Penske Entertainment – INDYCAR.com

Fox Corporation Makes Bold Move with Major Investment in Penske Entertainment, Powering INDYCAR’s Future

August 2, 2025
Minnesotans face health impacts as wildfire smoke lingers – kare11.com

Minnesotans face health impacts as wildfire smoke lingers – kare11.com

August 2, 2025
Trump announces sweeping new levies for scores of countries – as it happened – The Guardian

Trump announces sweeping new levies for scores of countries – as it happened – The Guardian

August 2, 2025
Livonia police use grappler technology to stop drunk driver – ClickOnDetroit | WDIV Local 4

Livonia Police Deploy Grappler Technology to Safely Stop Drunk Driver

August 2, 2025

Categories

Archives

August 2025
MTWTFSS
 123
45678910
11121314151617
18192021222324
25262728293031
« Jul    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (751)
  • Economy (776)
  • Entertainment (21,653)
  • General (16,252)
  • Health (9,813)
  • Lifestyle (784)
  • News (22,149)
  • People (776)
  • Politics (785)
  • Science (15,989)
  • Sports (21,271)
  • Technology (15,753)
  • World (758)

Recent News

Endemism shapes viral ecology and evolution in globally distributed hydrothermal vent ecosystems – Nature

Endemism shapes viral ecology and evolution in globally distributed hydrothermal vent ecosystems – Nature

August 2, 2025
Scientists Finally Reveal the Hidden Trigger Behind Lightning Strikes

Scientists Finally Reveal the Hidden Trigger Behind Lightning Strikes

August 2, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version