New Omicron offshoot BA.4.6 evades protection of Evusheld's antibodies, study finds The antibodies in Evusheld, the only therapy available to protect people with reduced immune function against Covid-19, may lose their punch against the BA.4.6 subvariant, a new study shows. Brenda Goodman, CNN CNN

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Covid-19 Pandemic Timeline Fast Facts Read CNN's Fast Facts about the coronavirus outbreak, declared a pandemic by the World Health Organization. CNN Editorial Research CNN

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(CNN) Here's a look at the coronavirus outbreak, declared a pandemic by the World Health Organization. The coronavirus, called Covid-19 by WHO, originated in China and is the cousin of the SARS virus.

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