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What’s Holding Up New Omicron Vaccines?

What’s Holding Up New Omicron Vaccines?

What’s Holding Up New Omicron Vaccines? Charles Schmidt All the vaccines we use to ward off SARS-CoV-2, the virus that causes COVID, share one crucial feature: they were designed to protect against its ancestral form, which surfaced in Wuhan, China, more than two years ago. Today’s virus, however, is not the same as it once…

How Severe Are Omicron Infections?

How Severe Are Omicron Infections?

How Severe Are Omicron Infections? Heidi Ledford, Nature magazine It has been less than four weeks since the announcement that a mutation-laden coronavirus variant had been discovered in southern Africa. Since then, dozens of countries around the world have reported Omicron cases—including a worrying number of infections in people who have either been vaccinated or experienced previous SARS-CoV-2 infections.…

Why Is Omicron So Contagious?

Why Is Omicron So Contagious?

Why Is Omicron So Contagious? Charles Schmidt The Omicron variant is spreading rapidly worldwide. New travel restrictions and mounting anxiety have followed this heavily mutated version of the coronavirus, which has been reported now in more than 60 countries. In South Africa, where Omicron’s 50 or so mutations were first identified, the variant has shown…

Omicron Is Likely to Weaken COVID Vaccine Protection—But Boosters Could Restore It

Omicron Is Likely to Weaken COVID Vaccine Protection—But Boosters Could Restore It

Omicron Is Likely to Weaken COVID Vaccine Protection—But Boosters Could Restore It Ewen Callaway, Nature magazine The fast-spreading Omicron SARS-CoV-2 variant is highly likely to compromise some of the protection from vaccines, suggest the first laboratory studies of Omicron’s ability to evade immunity. But the preliminary results—released overnight by teams in South Africa,…