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As early as mid-64, the COVID vaccine, Dr. Siriraj noted, can be only 50% effective. Some companies require an injection every year.
On November 3, 2020 at Siriraj Hospital Prof. Prasit Wattanapa, Dean of the Faculty of Medicine at Siriraj Mahidol University Hospital The latest information on the production of the COVID-19 vaccine. During a briefing on the COVID-19 situation According to global data on the COVID-19 vaccine, 88 companies are working on animal studies. Which takes the digits of the month, then it can be answered that Can the vaccine stimulate the immune system? When tested with animal experiments it will enter a phase 1 human study, which will focus primarily on safety. Using a small number of studies, there are 35 companies.
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Phase 2 studies more people. There is a wide variety of genders and ages. Using a test group of thousands of people, there were 14 companies and phase 3 to study the effectiveness of disease prevention. Overall, more than 30,000 people were used, with both real and pseudo-vaccines. The person receiving the injection will not know what type of vaccine they have. To test the disease prevention effectiveness of this vaccine, there are currently 11 companies
“After that, it is already in phase 3. There will be a series of vaccines in the phase 3 trial, but they are necessary in that country. There are 6 companies that allow the use of vaccines in certain areas. And there is currently no approved vaccine by the World Health Organization for use. Currently, there is a lot of research that agrees that COVID-19 Immunity There is short-term immunity in the body. Some companies require 2 injections and others require each injection to be injected. Years ”Said Professor Prasit.
Professor Prasit said he concluded on the COVID-19 vaccine. Only 7 percent of vaccines tested in animals are successful in humans. Vaccines that have been studied in humans Only 20% successful Phase 3 human vaccines can be only 50% successful, and people of different ages may respond differently to vaccination.
“So the vaccine will not be produced before the middle of next year. But the most effective vaccine is ourselves. Including wearing masks, washing hands frequently, spacing, logging facility access We always get it right. You must continue If we want the rich to eat, proceed We have to help each other If we do the same We can still live away from home. If we don’t help each other it will happen like in some European countries, ”said Professor Prasit.
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