Home » Third dose, first findings from Israel: the epidemic slows down in the elderly

Third dose, first findings from Israel: the epidemic slows down in the elderly

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Less than a month after the start of the third-dose campaign of the anti Covid vaccine in Israel, despite still very sustained infections, the first signs of an impact on the coronavirus trend in the country and the rates of serious diseases pushed by the variant are beginning to be seen. Rapidly spreading delta.

First in the attack strategy

The Delta variant caught on in June, just as the rewards of one of the fastest vaccine launches in the world were beginning to reap. To counteract the inversion in the dynamics of infections, the administration of a third dose of the Pfizer / BioNTech vaccine was started on 30 July, starting with people over 60 years of age. And in the past ten days, according to data from the Israeli Ministry of Health interpreted by some scientists interviewed by Reuters, the pandemic is easing into the older age group. With more than one and a half million people, overall, already immunized with the third dose.

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The trend of infections

The rate of spread of the disease among vaccinated people aged 60 and over – known as the reproduction rate – began to steadily decline around August 13 and dropped below 1, indicating that every infected person is transmitting the virus unless another person. A reproduction rate of less than 1 means that an outbreak is regressing. For scientists, the recalls are having an impact on infections, but other factors are also contributing to the decline. “The numbers are still very high, but what has changed is that the very high increase in the rate of infections and severe cases has decreased, as has the rate at which the pandemic is spreading,” explained the government consultant. Eran Segal of the Weizmann Institute of Science. “This is probably due to the third recall, the increase in people who took the first dose and the high number of people infected per week, perhaps up to 100,000, who now have natural immunity.”

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Third dose extended also to over 30s

For the second consecutive day, Israel recorded almost 10 thousand (9,891) new cases with a rate of 6.69%, the highest in the last wave due to the Delta variant. The sick are 1,118 in total, of which 692 are seriously ill. However, the government’s strategy remains that of proceeding at a rapid pace with the third vaccination, a real mass phenomenon that gradually includes increasingly younger ages. For two days, access to the third dose of the vaccine has been extended to Israelis over 30 years who received the first two at least five months ago. Experts have indicated that 5 million vaccinated with the third dose are the target to beat the Delta variant. Meanwhile, in view of the upcoming religious holidays in September, measures have been reintroduced at the Wailing Wall in Jerusalem to prevent the spread of the virus during collective prayers.

Decline in protection over time, I study English

According to newly released conclusions from a UK study, the double dose of Pfizer / BioNTech and AstraZeneca would begin its decline within six months of inoculation. In detail, the researchers noted that the Pfizer vaccine was 88% effective in preventing infection one month after the second dose. But after 5 or 6 months, the protection dropped to 74%, which would mean a drop of 14 percentage points in 4 months. With the AstraZeneca vaccine, the protection against infection was 77% one month after the second dose. After 4 or 5 months it dropped to 67%, with a drop of 10 percentage points in 3 months. The study was based on data from 1.2 million users of the ZOE COVID app, which launched a new feature on 11 December 2020 to enable vaccine registration and monitor side effects and efficacy in the real world. Behind this App and its commitment to the Covid front is a non-profit initiative, created in collaboration with King’s College London and funded by the Department of Health and Social Care.

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