Data on the effectiveness of vaccines has been based on trials to date, but three and a half weeks after the start of the successful vaccination campaign in Israel, there are already initial conclusions based on the actual vaccination.
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Data published this evening (Tuesday) by the Ministry of Health indicates that the success of receiving the first dose of the Pfizer coronavirus vaccine is proving itself - in that a decrease in the number of patients was recorded, 15 days after vaccination with the first dose.
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In the first week after vaccination, the average rate of positive results among those vaccinated is 4.6%. From the eighth day to the 14th day after receiving the first dose of the vaccine, the rate of positive results is an average of 6.4% among all those vaccinated.
The figure takes a turn starting on the 15th day after vaccination, when the rate of positive results among those vaccinated is only 3.81%. This indicates a decrease in the number of people testing positive for COVID-19 among those vaccinated, but certainly not full immunity.
A similar encouraging statistic can also be seen in the number of vaccinated people who were hospitalized after being vaccinated: in the first week after receiving the vaccine, 244 vaccinated patients were hospitalized. Between the eighth and 14th days after receiving the vaccine, the number of new hospitalizations dropped to 124 people, and from the 15th day there was a huge decrease in the number of new hospitalizations - only seven patients.
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According to a report on Channel 12, the Maccabi Health Fund's Research and Innovation Institute, KSM, discovered that the Pfizer vaccine is effective in preventing coronavirus infection starting on the 13th day after receiving the first dose.
The test was conducted at the KSM Institute using real data from the first 430,000 Maccabi vaccine recipients.
The institute examined the percentage of people infected in the first few days after receiving the first dose, when the vaccine was not yet effective. Then, they compared the data with the percentage of people infected on day 13 - and discovered that the percentage of people infected dropped by 601%.
However, the institute emphasizes that this is a partial effectiveness, and that despite the encouraging findings, there were still cases of people becoming infected even though 13 days had passed since the first dose, and therefore, even after 13 days have passed since receiving the first dose, social distancing rules must continue to be observed.
The researchers further emphasize that in order to obtain maximum effectiveness of the vaccine - 95%, as stated by Pfizer - one must receive the second dose of the vaccine and wait at least a week.
