“About 50% develop antibodies to corona within two weeks”

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Preliminary results from a serology study conducted among 400 Sheba Tel Hashomer workers who were vaccinated at the hospital two weeks ago show that more than 50% of the workers who were vaccinated developed antibodies, which indicate that they are vaccinated against corona.

Last week it was found that only 2-1 percent of the subjects developed antibodies, while this week, out of 100 tests that have already been deciphered, in 50 of them an increase in the level of antibodies was found.

Vaccination of medical staffs // Archive photo: Yoni Rickner, Shmuel Buharis, Newsenders

These are results similar to those obtained in a Pfizer study, which found that the vaccine provides 52% protection in the two weeks after receiving the first dose. It should be noted that the company announced yesterday (Monday) That there is no evidence that the first vaccine cream is effective 21 days after taking it. This is a contradiction of the claims of the British medical community, which recently recommended that the government focus on as many starters as possible for the general population.
Commenting on the results of the hospital’s research, a senior Sheba official said: “It is better to postpone the second dose of the vaccine for one month and allow another 1.5 million people to be vaccinated – and thus reach the end of the plague.”

Pfizer vaccine production // Archive photo: Reuters

Against the background of the extensive coverage of the issue in recent days, the Ministry of Health has issued a clarification statement: “Anyone who has received a first dose of corona virus vaccine will also take the second dose saved during the first dose. The only exceptions are people who became ill after receiving the first dose.”

“It is better to postpone the second dose”

“This is good news with a lot of light at the end of the tunnel,” said Prof. Gili Regev-Yohai, director of the hospital’s prevention and control unit at the study. “50% of the population is still not enough, and we will wait to see what happens after the third week. This means that already after two weeks there is a certain degree of protection. That does not mean you do not need the extra dose, the booster. “After only two weeks, there is a good amount of antibodies, but we all still need to be careful and continue to wear masks.”

Simulation in Sheba, ahead of the vaccination operation // Archive photo: Gil Kramer

“This is an idea that Prof. Itamar Grotto talked about and is supported by researchers from Harvard, including the world expert Mark Lifshitz. There is no question that in the long run a second vaccine is needed, there is no Khulkin and no question. This was the case in Pfizer’s study. Given a special situation in Israel for a month during which the population will not be vaccinated, it is better to postpone taking the second dose for one month and allow another 1.5 million people to be vaccinated – thus reaching an end to the plague faster. We have an exceptional opportunity in Israel. For a month of postponement, there is no harm in this and the significance of eradicating the plague is greater, “she emphasized.

However, Prof. Regev-Yohai noted that the second dose should not be postponed for more than a month, since then the consequences are unknown. “Right now the epidemic and the general vision are more important than the personal evidence that one person or another will be vaccinated. There are no consequences for a month’s delay. In the UK we are talking about a few months – Then many of the antibodies created after taking the first dose will disappear, and the second will not be useful. “

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