The effectiveness of booster doses of covid-19 vaccine is also likely to decline in the coming months, and people may need further revaccinations by the end of the year. This was stated by the head of the American pharmaceutical company Moderna Stéphane Bancel on Thursday at a conference organized by the banking company Goldman Sachs, the Reuters agency reported.
The statement comes days after Israel approved the administration of a second “booster” and a fourth overall dose of vaccine from Pfizer and BioNTech to immunocompromised people. The same move was announced on Thursday by the Chilean government, which wants to make the fourth dose available to all residents from the age of 55 from February 7. A preliminary study from Israel found that the fourth dose of the vaccine led to a fivefold increase in antibody levels one week after administration.
“I still believe that in the autumn of 2022 and beyond, we will need boosters,” said the CEO of Moderna Bancel. His company is also reportedly working on a vaccine adapted to the coronavirus variant of omicron, but it will most likely not be available in the next two months. Reuters recalls that repeated vaccinations are beneficial for Modern and that the company recently announced potential revenues from booster doses in the US of two billion dollars (over 43 billion crowns).
Some experts call for a cautious approach to administering second booster doses. “We can’t vaccinate everyone every four to six months. It’s not sustainable and we can’t afford it,” Andrew Pollard, head of vaccine research at Oxford University, told The Daily Telegraph. Pfizer’s director of medicine, Paul Burton, said last month that we had to wait a few more months to decide when and whether fourth doses would be needed.
However, their administration already has support in parts of North America. West Virginia Gov. Jim Justice has announced that it wants to start offering them to people over the age of 50 or paramedics, for example. The Canadian province of Ontario is already starting to vaccinate with the fourth dose, in retirement homes and long-term care hospitals.
Source: Tyden.cz by www.tyden.cz.
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