Author: CARL ZIMMER
J. & J. Booster Protects Against Severe Omicron, Study Says
Two shots of the vaccine reduced the risk of hospitalization from the fast-spreading variant by 85 percent, a clinical trial found.
Omicron Variant May Help Beat Delta, Study Suggests
In the lab, antibodies produced during an Omicron infection protected against Delta. If Omicron dominates in the real world, that could lead to a less dire future.
Omicron Variant Might Help Defend Against Delta, Lab Study Suggests
In the lab, antibodies produced during an Omicron infection protected against Delta. If Omicron dominates in the real world, that could lead to a less dire future.
Novavax’s Covid Vaccine Is Authorized in Europe
The vaccine will be the fifth to become available in the E.U., which already has ample supplies.
New ‘Omicron’ Variant Stokes Concern but Vaccines May Still Work
The Omicron variant carries worrisome mutations that may let it evade antibodies, scientists said. But it will take more research to know how it fares against vaccinated people.
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.
Newly Discovered Bat Viruses Give Hints to Covid’s Origins
Coronaviruses discovered in Laotian bats are surprisingly adept at infecting human cells, showing that such deadly features can indeed evolve outside of a lab.
Pfizer’s Shot Still Strong Against Covid. Israeli Data Raise Prospect of Waning Against Infection.
Because of a small sample size and other factors, a large range of uncertainties flank the new findings. The vaccine’s strength against severe disease remains high.
Mixing Pfizer, AstraZeneca Vaccines Gives Strong Covid Protection, Study Finds
Administering a first dose of one vaccine and a second dose of the other, in either order, is likely to provide potent protection, the researchers said.