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This means absolutely nothing. To conduct a clinical trial. Third phase, tens of thousands of people are needed. This company, which is the most advanced at the moment, estimates that more than 40,000 people will be included in the study. This is what Acad said. Petrunov in an interview with Monitor about the news that the Oxford vaccine against COVID-19 is already being tested.
There are four phases that a vaccine must go through. The latter is the post-marketing study, which should follow the outcome of the vaccine, but not much is said about it.
We still do not know anything about the 10 vaccines that are currently being administered. It takes time to analyze effectiveness. The main thing is what immunity we will build with them. So far, we are talking mainly about the antibody, which is the least important, says the scientist.
We talk very little about cellular immunity, which will be the basis of an effective vaccine. This is the ability of the body’s memory cells to keep the vaccine effective for some time. So we are at the beginning of vaccine development. It is available as a biological product, but it must subsequently be proven that this product works according to all modern requirements.
Sofia, Bulgaria
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