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COVID-19

Why COVID-19 is more deadly in people with obesity—even if they're young

Since the pandemic began, dozens of studies have reported that many of the sickest COVID-19 patients have been people with obesity. In recent weeks, that link has come into sharper focus as large new population studies have cemented the association and demonstrated that even people who are merely overweight are at higher risk.

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White House orders end to COVID-19 airport screenings for international travelers--Yahoo exclusive

WASHINGTON — The U.S. government on Monday will stop conducting enhanced screening of passengers on inbound international flights for COVID-19, Yahoo News has learned. 

The screening operations have been held at select airports since January, when the first cases of the disease began to emerge from Wuhan, China. Since March, incoming international flights from select high-risk countries, including much of Europe, China and Iran, among other regions, have been funneled through 15 designated airports in the United States.

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WHO says vaccine safety top priority, as AstraZeneca pauses study

ZURICH/GENEVA (Reuters) - Safety of a prospective COVID-19 vaccine comes "first and foremost", the World Health Organization's chief scientist said on Wednesday, as a trial of a leading candidate from AstraZeneca was paused due to concerns over side effects.

Rollout of an effective vaccine is seen as a crucial step in helping battered economies recover from the coronavirus pandemic.

"Just because we talk about speed...it doesn't mean we start compromising or cutting corners on what would normally be assessed," Dr. Soumya Swaminathan said in a social media event.

"The process still has to follow through rules of the game. For drugs and vaccines which are given to people, you have to test their safety, first and foremost," she said.

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Operation Warp Speed promised to do the impossible. How far has it come?

It’s called Operation Warp Speed. And — regardless of one’s politics, one’s level of concern about Covid-19, or one’s views of therapeutics and vaccines — it inarguably ranks as one of the most ambitious scientific endeavors in modern U.S. history.

Is it working?

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NEW STUDY: Sturgis motorcycle rally was a 'superspreader event'

WASHINGTON — In early August, more than 460,000 motorcycle enthusiasts converged on Sturgis, S.D., for a 10-day celebration where few wore facial coverings or practiced social distancing. A month later, researchers have found that thousands have been sickened across the nation, leading them to brand the Sturgis rally a “superspreader” event. 

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Half a million US children have been diagnosed with Covid-19

 
 
CNN)Half a million US children have been diagnosed with Covid-19, according to the American Academy of Pediatrics and the Children's Hospital Association.
 
The groups said 70,630 new child cases were reported from August 20 through September 3. This is a 16% increase in child cases over two weeks, bringing up the total to at least 513,415 cases, the groups said in their weekly report on pediatric coronavirus cases.
 
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How the Aging Immune System Makes Older People Vulnerable to Covid-19

Covid-19 patients who are 80 or older are hundreds of times more likely to die than those under 40.

That’s partly because they are more likely to have underlying conditions — like diabetes and lung disease — that seem to make the body more vulnerable to Covid-19.

But some scientists suggest another likely, if underappreciated, driver of this increased risk: the aging immune system.

The changes that ripple through our network of immune cells as the decades pass are complex, resulting in an overreaction here, a delayed response there and over all, a strangely altered landscape of immunity.

Scientists who study the aging immune system say that understanding it may lead not only to a clearer sense of how age is connected to disease vulnerability, but to better strategies for vaccines and treatments for Covid-19.

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