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Severe COVID-19 Disables Disease-Fighting Immune Circuit

Image by NIH Patients with severe COVID-19 produce antibodies that paradoxically shut down their immune system’s virus-fighting response just when they need it most, according to new UC San Francisco research published in Nature.  Scientists believe this overzealous antibody response is an inappropriate engagement of an ancient biological feedback circuit whose real function is to help the body tamp down levels of immune signaling molecules called interferons, to modulate the immune response once a viral infection is under control.   Interferons help to stop a cell’s protein-making machinery, so viruses can’t hijack it to make copies of themselves. But in patients with severe COVID-19, antibodies that block the effects of interferons appear prematurely, removing the cells’ defenses while the infection is still raging. 

Severe COVID-19 Disables Disease-Fighting Immune Circuit

Severe COVID-19 Disables Disease-Fighting Immune Circuit Patients with severe COVID-19 produce antibodies that paradoxically shut down their immune system’s virus-fighting response just when they need it most, according to new UC San Francisco research published in  Nature. Scientists believe this overzealous antibody response is an inappropriate engagement of an ancient biological feedback circuit whose real function is to help the body tamp down levels of immune signaling molecules called interferons, to modulate the immune response once a viral infection is under control. Interferons help to stop a cell’s protein-making machinery, so viruses can’t hijack it to make copies of themselves. But in patients with severe COVID-19, antibodies that block the effects of interferons appear prematurely, removing the cells’ defenses while the infection is still raging.

San Francisco announces goal: Vaccinate all residents by June 30

San Francisco announces goal: Vaccinate all residents by June 30 FacebookTwitterEmail Kaiser Dr. Allison Friedenberg, left, pumps her fist after receiving a Pfizer COVID-19 vaccine shot from nurse Scott Keech at Kaiser San Francisco hospital on Dec. 7, 2020, in San Francisco. Kaiser Permanente gave the first of 10 Pfizer COVID-19 vaccine to frontline workers at the Kaiser San Francisco hospital.Douglas Zimmerman / SFGATE The city of San Francisco and its health care providers announced a goal Wednesday to vaccinate all residents by the start of summer. Working with our major health system partners and other community clinics, our goal by June 30 is to get our entire population of 900,000-plus individuals in San Francisco vaccinated for COVID-19, said Roland Pickens, director of San Francisco Health Network, the city s public health care system, at a supervisors’ hearing Wednesday. As you can imagine there will be many twists and turns in the road, but we are feeling confiden

Professionais de transnacional elétrica iniciam greve no Chile

Professionais de transnacional elétrica iniciam greve no Chile
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Like Many Small Businesses, This Neighborhood Bar Is Back to the Drawing Board

1 of 14Show Caption The Fireside Lounge currently offers beer, wine, and spirits to-go through front windows on Webster Street, Alameda, Calif., Saturday, July 11, 2020. Photograph by Kelsey McClellan What’s Working: If you don’t reach out to others, no one’s going to know you need help. That’s why Russell said not being shy asking for help from the community, moving outside your comfort zone to try new things, and maintaining a presence even if it means just saying, yet again, that you’re still there are key to navigating the ever-shifting business landscape of the pandemic. That’s evident because friends and the local community have been instrumental in keeping the Fireside afloat over the past ten months of pandemic.

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