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A recent Israeli study concluded that the third dose of the coronavirus vaccine produces 10 times more antibodies than the second dose.
The study, which was conducted at the Sheba Center in Tel Aviv, found that antibody levels in the body a week after giving a third dose of the Covid-19 vaccine were 10 times higher than those detected a week after. the second dose.
The Times of Israel website said the preliminary results of this study, which was conducted on employees at Sheba Medical Center, raised optimism about the extent of protection provided by the third dose of the vaccine. , which will last longer than before. thought.
The medical center said it was studying its results with caution and would continue to monitor antibody levels in those who received the third dose over the next few months.
Israel, which is the first country to officially provide a third dose to its citizens, launched a campaign to give the booster dose on August 1, and it was first offered to those over sixty, and then it will be given to people who received the second dose five months ago.
Several countries including France, Germany and several countries in the Middle East have already decided to donate the boosters, while others, including the United States and Great Britain, plan to do so following the l emergence of a highly transmissible delta mutant.
But public health and infectious disease experts, including scientists from the United States Food and Drug Administration (FDA) and the World Health Organization, said this week that there was ” no credible evidence “at this time that the general public would need COVID-vaccine boosters 19. 19, and called for the provision of these vaccines to those who have not received any vaccine before.
The recommendations of the 18 experts in a review published by the magazine “Lancet” on Monday came as health authorities in the United States seek to give millions of residents additional doses, from September 20, in part of his campaign. to fight the epidemic.
In the new review, experts said no matter how beneficial the boosters might be, they would not outweigh the benefit of using these doses to protect the billions of people who remain unvaccinated. in the world. They said the boosters might be useful for some people, but are not yet necessary for the general population.
The recommendations read: “Donors may be appropriate for certain people for whom basic immunization may not be sufficient to protect, such as those who have received poorly effective vaccines or those with weakened immunity. “
Experts note in the new review that they have found that “vaccines are more effective against severe symptoms than against infections, and vaccination appears to protect significantly against severe symptoms for all major mutations.”
Last month, the Director-General of the World Health Organization, Tedros Adhanom Ghebreyesus, called for a moratorium on the use of booster doses to ensure the availability of doses in countries where few people have received them. base doses of the vaccine.
The administration of US President Joe Biden has suggested giving the booster shots eight months after the initial doses, but many scientists have opposed the plan, saying the vaccines are still effective in preventing severe symptoms and hospitalizations.
Studies published by the US Department of Health’s Centers for Disease Control and Prevention indicate that while efficacy against delta infection appears to decline slightly over time, vaccines are very effective against severe symptoms in all groups of patients. age, except the elderly. the age of 75 may have reduced effectiveness of vaccines in preventing hospitalizations.
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