The drug regulator of the European Union (EU) expressed doubts about the need for a fourth dose of the vaccine for him COVID-19, stating that there is currently no data to support this approach, while waiting to learn more about the contagious omicron variant.
“Although the use of additional doses can be part of contingency plans, repeated vaccinations at short intervals would not represent a sustainable long-term strategy,” said the chief of vaccine strategy for the European Medicines Agency (EMA), Marco Cavaleri.
The head of the EMA expressed concern that a strategy of administration of booster doses every four months carries the risk of overloading the immune system of people and causing fatigue in the population.
Cavaleri also said that more data on the impact of the new variant on vaccines and a better understanding of the evolution of the current wave are needed to decide whether a specific omicron vaccine is necessary.
“It is important that there is a good debate around the choice of the composition of the vaccine to ensure that we have a strategy that is not only reactive and try to arrive at an approach that is adequate to prevent a future variant,” he said.
The EMA stated that it is currently in discussions with pharmaceutical companies in case there is a need for an updated vaccine, but added that any such changes would have to be coordinated globally.
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