Omicron: immunity drops 10 weeks after the third dose, a UK study found

Published by Graziella L. · Published on 27 December 2021 at 16h19
As the third dose vaccination campaign is going on in France, the UK health security agency has released a study showing immunity drops only ten weeks after the booster. Towards a fourth dose?

European countries are speeding up vaccination and instating new restrictions, with Omicron predominating. England – that faced a genuine Omicron wave before other countries – is working on this new variant to learn more about its resistance to vaccines and contagiousness. The UK health security agency has just unveiled immunity drops only ten weeks after the third dose.

The vaccines’ cover duration seems to quickly decrease after the booster shot. The study unveils with a three-Pfizer-dose scheme, protection reaches 70% and drops to 45% ten weeks after the third shot. For two doses of Pfizer and a Moderna booster, effectiveness reaches 70-75% for 9 weeks before declining.

Could a fourth dose be needed earlier than expected? Data are impressive with new records in contamination toll, including over 100,000 new contaminations on Christmas eve in France. But, according to primary studies, Omicron dramatically cuts down hospitalization compared to Delta and is found far less dangerous.

Coronavirus : L’OMS s’inquiète et alerte sur la recrudescence des cas en EuropeCoronavirus : L’OMS s’inquiète et alerte sur la recrudescence des cas en EuropeCoronavirus : L’OMS s’inquiète et alerte sur la recrudescence des cas en EuropeCoronavirus : L’OMS s’inquiète et alerte sur la recrudescence des cas en Europe Covid: Fighting the pandemic with boosters is no viable strategy, the WHO claims
This Tuesday January 11, 2022, the World Health Organization warms the strategy consisting in fighting the pandemic with boosters is not the right one. [Read more]

Practical information

Comments
Refine your search
Refine your search
Refine your search
Refine your search