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3 mins read

Covid-causing Omicron BF.7 variant highly transmissible but not as severe as Delta variant, say doctors

Just as Indians were getting ready to ring in the new year with a bang after two years of pandemic-…

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2 mins read

Study shows Covid virus migrates within neurons, infects brain

In a first, researchers have demonstrated that different variants of SARS-CoV-2, the virus behind C…

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2 mins read

Fauci says Omicron variant is 'almost certainly' not more severe than Delta

Dr. Anthony Fauci told AFP that Omicron could potentially cause milder disease than other coronavir…

Rebecca Cohen   


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One chart shows how well vaccines and boosters protect against severe Omicron compared to Delta

Booster shots appear to be at least 90% effective against hospitalization for both Delta and Omicro…

Aria Bendix   


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2 mins read

Officials at the WHO called the new variant Omicron because 'Nu' sounded too close to 'new'

They also skipped "Xi" because it is a common name, a spokesperson for the World Health Organizatio…

Connor Perrett   


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4 mins read

2 charts show how Omicron symptoms differ from Delta and past coronavirus variants

Vaccinated people with Omicron reported more sore throats and runny noses, but fewer instances of f…

Aria Bendix,Shayanne Gal   


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4 mins read

Is Omicron as infectious as it gets? Scientists lay out their best and worst scenarios for the virus' future.

The coronavirus could be endemic before the end of the decade. But in a rare scenario, a more letha…

Aria Bendix   


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4 mins read

The most common Omicron symptoms include cough, fatigue, and a runny nose, according to health officials in the US and Europe

One of the 43 Omicron patients identified in the US was hospitalized, and the person was discharged…

Aria Bendix,Hilary Brueck   


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3 mins read

Omicron may challenge vaccine protection more than other variants, early lab data suggests, but the shots could still protect against severe disease

Two small studies that have yet to be published give the first look at how Omicron may impact immun…

Aria Bendix,Andrew Dunn   


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2 mins read

A study on NBA players and staff found vaccinated people with breakthrough infections may be less likely to spread COVID-19 to others

The study, done when Alpha and Delta were dominant in the US, found vaccinated people "clear" the v…

Charles Davis   


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4 mins read

The new coronavirus variant, Omicron, raises red flags among scientists — but there are more mysteries than answers about its public threat

The variant shows signs of being more transmissible or dangerous than other strains, but scientists…

Aria Bendix   


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A scientist tracking the coronavirus predicts it will keep mutating to avoid the immune response — but at a slower rate than before

Trevor Bedford, associate professor at Fred Hutch, said that he highly doubted that the virus that …

Dr. Catherine Schuster-Bruce   


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The Mu coronavirus variant shares key similarities with Delta, but it doesn't pose a greater threat

Scientists are closely watching the variant because of its potential to evade antibodies from vacci…

Aria Bendix   


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5 mins read

There's no Delta-specific booster coming to save you - what we have is good enough

While the Delta variant is dominant worldwide, existing vaccines work well against it. So there's n…

Aylin Woodward,Hilary Brueck   


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2 mins read

A new COVID-19 variant called Mu that might be able to evade immunity from vaccines has been detected in almost every US state

The Mu variant could have the ability to evade the immunity people get from vaccines and past infec…

Joshua Zitser   


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2 mins read

Scientists are closely tracking a new variant spreading in the UK that could be 10% more infectious than Delta

The new variant, AY.4.2, is a descendant of the Delta variant. Cases are low outside the UK, and we…

Dr. Catherine Schuster-Bruce   


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3 mins read

Coronavirus transmission among vaccinated people could raise the risk of an even more dangerous variant

As cases of the Delta variant surge, vaccinated people who don't mask up may increase the risk that…

Aylin Woodward,Hilary Brueck   


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4 mins read

The US could see a brighter fall and winter as COVID-19 cases and deaths decline, a new model shows

Scientists are hopeful that authorizing vaccines for young kids could help prevent a major surge th…

Aria Bendix   


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1 min read

The Delta variant was detected on 99.7% of sequenced tests worldwide in the past 60 days

The Delta variant has outcompeted other strains, including other so-called "variants of concern," i…

Dr. Catherine Schuster-Bruce   


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3 mins read

The 'Delta Plus' variant -AY.4.2- has been detected in New York and California, but experts say not to panic

The AY.4.2 variant, also known as "Delta Plus" is a daughter of the Delta variant. So far, it has b…

Erin Schumaker