Michaeleen Doucleff
Stories
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Health
A tantalizing clue to why omicron is spreading so quickly
A new study from the University of Hong Kong offers preliminary information that could explain why this new coronavirus variant may be more transmissible.
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Health
Vaccine protection vs. omicron infection may drop to 30% but does cut severe disease
Data from 78,000 South Africans with COVID show the Pfizer vaccine is far less effective in preventing infection by the omicron variant. But there is still significant protection from severe illness.
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Health
How well does a COVID vaccine hold up against the omicron variant?
Scientists in South Africa have found that the effectiveness of the Pfizer vaccine to prevent SARS-CoV-2 infections has dropped to about 30% for the omicron variant.
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Health
Scientists race to answer the question: Will vaccines protect us against omicron?
There's serious concern about the effectiveness of vaccines against the omicron strain. But there's also reason to be hopeful — especially for those who've had a booster.
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National
What we know about the omicron variant
The omicron variant of the not been found in the United States yet. Here's what's we known about it, how dangerous it's likely to be, and whether vaccines or new drugs will be effective against it.
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National
The omicron variant may be the most infectious one yet
Scientists in South Africa say preliminary data suggests the omicron coronavirus variant is already widespread across southern Africa — and this happened in a very short period of time.
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National
New coronavirus variant omicron is classified as a 'variant of concern'
A variant now named omicron, first detected in South Africa, prompted new overseas travel restrictions in Europe and a special World Health Organization meeting on Friday.
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Health
What to know about omicron, the new COVID variant
The World Health Organization deemed it a variant of concern, and the U.S. is banning travel from parts of Africa where it's spreading. Here's what scientists know and what they're trying to learn.
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Health
Coronavirus FAQ: What is long COVID? And what is my risk of getting it?
One of the surprising aspects of the pandemic is that symptoms can linger months after infection. This syndrome has been called "long COVID" and it's had a profound impact on the lives of many people.
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Health
How SARS-CoV-2 in American deer could alter the course of the global pandemic
Scientists have evidence that SARS-CoV-2 is circulating in white-tailed deer in the U.S. They say the findings could essentially dash any hopes of eliminating the virus in the U.S. — and the world.