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The doctor warned about the dangers of the early release of vaccines from COVID-19
The Israeli doctor believes that it is impossible to release a vaccine against coronavirus into mass production until the completion of the third stage of the test. So far, only the first phase of research has been carried out in Russia.
According to RIA News, Israeli immunologist, Professor Jacob Berkun, is in a hurry to develop a vaccine caused by the coronavirus pandemic. At the same time, the scientist recalls that such drugs must pass three mandatory stages of testing.
In the world, hundreds of laboratories are developing the drug for coronavirus. Of these, about 140 test the effect of vaccines on animals and only 20 have switched to clinical trials in humans. Only three or four research groups from the USA and China entered the third phase.
In Russia, the second phase of research will last until July 28. According to the Ministry of Defense, vaccine tests are carried out without shortening the time, and registration of the drug will be possible only after the second stage, if no problems are identified.
Israel signed a contract for the supply of vaccines from the United States from the company "Modern". This vaccine is already undergoing the second phase of research in several hundred participants. Scientists check the reactogenicity of the drug and choose the right dose.
In the third phase, the vaccine is tested on tens of thousands of people in real conditions. The data of this stage will be able to show how the drug works in conditions of high contamination. This stage lasts from a year or more.