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News Articles: immune system

An image of the hepatitis C virus  Image made from a transmission electron microscopy. The virus is adept at evading the immune system.

Tagged as: 

  • Science

Hep C has a secret strategy to evade the immune system. And now we know what it is

How does the hepatitis C virus keep the immune system at bay? A scientist finds the answer — and it involves a standard technique used by villains.

July 26, 2023
|
By:
  • Bec Roldan
Canadian astronaut David Saint-Jacques has his blood sampled on board the International Space Station for an experiment that examines the space-related changes that occur in blood and bone marrow.

Tagged as: 

  • Space

Why do some people get rashes in space? There's a clue in astronaut blood

A new study of astronaut blood finds that space travel reduces the expression of 100 genes related to the immune system.

June 26, 2023
|
By:
  • Ari Daniel
Rosy, 6, gives COVID tests and vaccines to her stuffed animals. She herself has been exposed to SARS-CoV-2, the coronavirus that causes COVID-19, multiple times and never tested positive. What's her secret?

Tagged as: 

  • Global Health

Why hasn't my daughter caught COVID? 2 factors likely protect her — and maybe you too

My 6-year-old has been exposed to SARS-CoV-2 at least four times and never tested positive. Many people fall into that category. Researchers have theories about why they've been able to ward it off.

April 08, 2022
|
By:
  • Michaeleen Doucleff
A woman receives the Johnson & Johnson COVID-19 at a drive-in vaccination event last week in Meerbusch, Germany.

Tagged as: 

  • Health

New Evidence Suggests COVID-19 Vaccines Remain Effective Against Variants

An analysis of blood from people who had received the Johnson & Johnson COVID-19 vaccine found a lower level of neutralizing antibodies against viral variants but a strong response involving T cells.

June 09, 2021
|
By:
  • Joe Palca
Mixing different kinds of COVID-19 vaccines might help boost immune responses, but the idea has been slow to catch on.

Tagged as: 

  • Health

Giving 2 Doses Of Different COVID-19 Vaccines Could Boost Immune Response

Using two different COVID-19 vaccines is a bit like giving the immune system two pictures of the virus, maybe one face-on and one in profile.

May 05, 2021
|
By:
  • Joe Palca
'Disease tolerance' is the ability of an individual, due to a genetic predisposition or some aspect of behavior or lifestyle, to thrive despite being infected with an amount of pathogen that sickens others. It might play a role in asymptomatic coronavirus infections.

Tagged as: 

  • Health

Scientists Explore Why Some People Are Able To Live With An Infection Unscathed

What if your body could corral an infection instead of eliminating it? Immunologists who see this sort of "disease tolerance" in plants wonder what role it might play in asymptomatic human infections.

August 29, 2020
|
By:
  • Emily Laber-Warren
Several lines of evidence now suggest that two common vaccines against respiratory illnesses can help protect against Alzheimer's, too. How much brain protection they offer will require more intensive study to quantify, scientists say.

Tagged as: 

  • Health

Flu Shot And Pneumonia Vaccine Might Reduce Alzheimer's Risk, Research Shows

Two new human studies back earlier hints that vaccines designed to prevent respiratory infections might also provide some protection against Alzheimer's disease.

July 27, 2020
|
By:
  • Jon Hamilton
Public health officials advise social distancing strategies and masks, in part because the latest evidence suggests that catching the coronavirus, even if you're young, is risky business. A significant portion of COVID-19 survivors suffer fatigue, blood clots, fevers and other symptoms for weeks and months after clearing the infection.

Tagged as: 

  • Health

Without A Vaccine, Researchers Say, Herd Immunity May Never Be Achieved

A growing number of researchers think until there's an effective vaccine, the coronavirus will simply persist in the population, causing illness indefinitely. Better to squelch the spread instead.

July 24, 2020
|
By:
  • Geoff Brumfiel

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