The world’s most widely used COVID-19 vaccines provide little to no protection against infection with the Omicron variant, laboratory evidence suggests
have shown that a protein-based booster triggers higher numbers of neutralizing antibodies than does a third shot of an inactivated vaccine. Many of these results have not yet been peer reviewed.might not be enough to subdue Omicron, warns Akiko Iwasaki, a viral immunologist at Yale School of Medicine in New Haven, Connecticut.
Iwasaki and her co-authors studied blood samples from 101 individuals who received two doses of CoronaVac followed by an mRNA booster. Before the boost, the samples showed no detectable Omicron neutralization. Afterwards, 80% of analysed samples showed some Omicron-blocking activity . But the quantities of antibodies that had Omicron-neutralizing potential were not much greater in this group than in a separate population that had received two doses of mRNA vaccine and no booster. The work has not yet been peer reviewed.for recipients of inactivated vaccines. “We were really celebrating how wonderful this strategy is,” she says, “and then — boom! — Omicron hit.” Now, she thinks these people probably need two extra jabs.
México Últimas Noticias, México Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
Time to learn more Greek letters: Omicron won't be last worrisome COVID variant, scientists sayThere's no guarantee the sequels of omicron will cause milder illness or that existing vaccines will work against them.
Leer más »
Analysis: With Omicron, global economy spots chance to push past COVIDGovernments worldwide are easing quarantine rules, reviewing coronavirus curbs and dialling back pandemic-era emergency support as they bid to launch their economies back into some version of normality.
Leer más »
Time to learn more Greek letters: Omicron won't be last worrisome COVID variant, scientists sayScientists warn that omicron's whirlwind spread across the globe practically ensures it won't be the last worrisome coronavirus variant.
Leer más »
What Parents Can & Should Do If They Test Positive for COVID-19 During the Omicron SurgeNo, you can't always isolate from your child. But here's what experts are recommending right now for parents and caregivers who test positive.
Leer más »