CNN)Pfizer's updated results for its experimental treatment for Covid-19 showed it cut the risk of hospitalization or death by 89% if given to high-risk adults within a few days of their first symptoms, the company announced in a news release Tuesday.
The first major real-world study of the omicron Covid-19 variant found that it appeared to cause less severe illness in South Africa, where it was first discovered last month, but that two doses of the Pfizer-BioNTech vaccine offer reduced protection against it.
As the coronavirus pandemic approaches the end of a second year, the United States stands on the cusp of surpassing 800,000 deaths from the virus, and no group has suffered more than older Americans. All along, older people have been known to be more vulnerable, but the scale of loss is only now coming into full view.
The United States passed another grim Covid-19 milestone Monday, as more than 800,000 Americans have now died from the virus that's plagued the country for nearly two years.
While the national vaccine mandate for health care workers remains mired in the federal courts, government officials say there is ample proof that requirements work — and do not cause a mass exodus of employees that some critics had feared.
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