In an interview with a Fars News Agency health reporter, Hamidreza Jamaati said: “In a study conducted on 388,000 people in Fars province with a 95% confidence interval, the effectiveness of Sinofarm, Sputnik and Strazenka vaccines in terms of effectiveness in preventing infection,” Hospitalization and mortality have been compared. In such studies, it is better to publish the whole article to be aware of the type and method of study and to be able to better judge the information and results provided.
He continued: “First, we need to know whether a study has been done on the safety, effectiveness and efficiency of these vaccines or not, and what are the definitions and criteria of each of the indicators for the study.”
The Secretary of the National Scientific Committee of Corona stated: “People who have been infected with Corona after receiving the vaccine should know that the basis of the infection was a positive PCR test or judged on the basis of clinical signs and imaging (CT scan).” Because in many cases, based on corona strains, we may see people infected despite a negative PCR test. Have these people been screened, or have only definite PCR positive cases been screened?
Jamaati emphasized: In the text of the mentioned letter, it is stated that vaccinated people have been compared with people who have not been vaccinated, while in the table, only vaccinated people have been compared. The point is, what was the status of the people who did not get the vaccine, and were they the same size as the vaccine group? Because in the table, there is no information about people who have not been vaccinated.
He said: “The letter states that in this study, people were evaluated two weeks after the vaccine was given, but the Sputnik and Strazenka vaccines were used in the country when the dominant virus was Wuhan or but the Sinofarm vaccine was more common in the country.” It was injected that the dominant virus was Delta or Indian. Delta virus is both more contagious and less positive than Wuhan, so we can say that in the statistical population of 388 thousand people in this study, the times are different and the prevalence of Wuhan and Indian virus in terms of prevalence and positive PCR test. , Has been different and therefore the study groups can not be the same and the correct comparison to affect the effect on infection, hospitalization and mortality of the dominant viruses in the country in terms of time, has not been done.
“The Sputnik and Strazenka vaccines are mostly given to specific groups, such as the medical staff and the elderly and people with underlying diseases, but the Sinofarm vaccine is injected into all age groups, which is comparable to the study population,” he said. It has not been the same.
Jamaati added: “In this study, the age group, sex and diseases of the subjects, that these factors can be effective in the efficacy and effectiveness of vaccines, is unclear because the response and efficacy of vaccines may be in terms of age groups and gender. It is different and it does not appear that this issue has been evaluated according to the table in this report.
He said: “No vaccine can completely prevent the disease. For example, the Pfizer vaccine, which was more than 90% effective in one of the countries studied, was less than 40% effective in the real community.” In the case of studies on the cinopharm vaccine in other countries, the results of this study show different results, so it is necessary to evaluate all the information and the whole article and re-analyze the results to see what results we achieve. .
The Secretary of the National Scientific Committee of Corona reminded: “Our recommendation is that the information of this study be provided to the Department of Epidemiology and Statistics of the Scientific Committee of Corona to be analyzed and re-examined to see the results obtained in the future strategies of the Committee.” Use corona science.
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