They do seem to offer significant protection against severe illness, but the consequences of rapidly spreading infection worry many public health experts.
Tag: Immune System
The Coronavirus Attacks Fat Tissue, Scientists Find
The research may help explain why people who are overweight and obese have been at higher risk of severe illness and death from Covid.
The Variant Hunters: Inside South Africa’s Effort to Stanch Dangerous Mutations
Scientists in a cutting-edge laboratory do part of the work. Local health workers on foot do the rest.
Omicron Variant Spreading Twice as Quickly as Delta in South Africa
A new mathematical analysis strengthens concerns about the effects of the new variant on the pandemic’s course.
Omicron Prompts Swift Reconsideration of Boosters Among Scientists
Many public health experts were opposed to a boosters-for-all approach. The new variant is changing some minds.
Omicron Prompts Swift Reconsideration of Boosters Among Scientists
Many public health experts were opposed to a boosters-for-all approach. The new variant is changing some minds.
What We Know About the New Covid Variant, Omicron
Intense research into the new coronavirus variant first identified in southern Africa has just begun. World leaders have urged people not to panic — and to get vaccinated, if they can.
Will the Covid Vaccines Stop Omicron? Scientists Are Racing to Find Out.
A “Frankenstein mix” of mutations raises concerns, but the variant may remain vulnerable to current vaccines. If not, revisions will be necessary.
Mix-and-Match Covid Boosters: Why They Just Might Work
The F.D.A. may authorize booster shots of vaccines different from the ones that Americans originally received. The science behind the move is promising.
What Scientists Know About the Risk of Breakthrough Covid Deaths
Deaths among people who have been fully vaccinated remain rare, but older adults and those with compromised immune systems are at much higher risk.