e of the U.S. and the rest of the world had gotten the. “If you want to stop hearing about the variant of the week,” said Jennifer Nuzzo, a Johns Hopkins health specialist, “we need to do more work to ensure all countries have more vaccine access.
Here are some questions and answers about vaccine immunity and boosters.
WHAT’S PROMPTING ALL THE BOOSTER DEBATE?
U.S.one day might need a booster — after all, they do for many other vaccines. That’s why studies are underway to test different approaches: simple third doses, mix-and-match tests using a different brand for a third dose, or experimental boosters tweaked to match different variants better.
But, Pfizer and its German partner BioNTech announced that they plan to seek Food and Drug Administration authorization for a third dose in August because it could boost levels of virus-fighting antibodies, possibly helping ward off worrisome mutants.
The companies haven’t publicly released data, and U.S.issued a sharp response that boosters aren’t yet needed and that the government, not vaccine makers, will decide if and when that changes.
TheOrganization said Monday there is not enough evidence to show that third doses are needed. It said the low shots should be shared with poor of being used by rich countries as boosters.
WHAT’S THE EVIDENCE THAT VACCINE PROTECTION REMAINS STRONG?
An Associated Press analysis last month found nearly allin the U.S. occur among the unvaccinated. Infections and hospitalizations have risen as the spreads in the previous few weeks. But the Centers for Disease Control and the surges are driven by the least vaccinated parts of a country with plenty of shots if people only take them.
No vaccine is perfect, meaning fully, but those so-called breakthrough cases are usually mild. Officials monitoring the need for boosters are watching closely for any jumps in serious . So far, the news is good: The people first in line for vaccines in December and January don’t seem to be at for breakthrough infections than those vaccinated more recently, the CDC’s Dr. Jay Butler said Tuesday.