“According to the data obtained, the third dose of Spikevax, administered six to eight months after the second, led to an increase in the level of antibodies in those adults in whom it began to fall. The booster dose consists of half the dose used during the primary vaccination,” – says in message.
It is noted that the possible side effects after the third dose of the vaccine are the same as those that appear after the second.
In October, the EMA authorized the use of additional dose of Pfizer / BioNTech Comirnaty vaccine for people over 18 years of age, at least six months after the second dose.
Booster doses of Spikevax and Comirnaty vaccines can also be given to people with weakened immune systems 28 days after the second dose, the agency said.
An outbreak of coronavirus infection began at the end of 2019 in China. 11 March 2020 WHO declared the spread of coronavirus a pandemic.
According to the agency Bloomberg, in the world have received 6.88 billion vaccinations against coronavirus – this number of doses is enough to completely vaccinate 44.8% of the world’s population, but distribution of drugs was uneven and the countries and regions with the highest incomes are vaccinated at times faster than the countries with the lowest incomes.
On August 9, BioNTech, which has developed a coronavirus vaccine with Pfizer, said that to maintain the highest level of protection against COVID-19 amid the emergence of new strains of coronavirus a third dose of vaccine may be required. Reuters wrote that Moderna also announced the possible need for booster doses – given that “Delta” -strain identified in fully vaccinated people.
Against the background of the spread of the Delta coronavirus strain, some countries, in particular Israel, Germany, Brazil, USA, Great Britain and others, began to introduce a third, booster, dose of vaccine to their citizens.
In September 2021, WHO called on extend the moratorium until the end of the year for additional doses of COVID-19 vaccine to allow each country to vaccinate at least 40% of its population. “
In October, WHO approves third dose of COVID-19 vaccine for certain groups of the population… US Food and Drug Administration and WHO experts concluded that the booster dose of the vaccine from the coronavirus is not mandatory for the entire population.
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