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Nelson Castro planteó serias objeciones sobre la vacuna rusa SOCIEDAD El Intransigente
El periodista y médico explicó diversas falencias que mostró en la fase 1 y la fase 2 la Sputnik V, que quiere comprar el gobierno. Nelson Castro, Vacuna contra el coronavirus
elintransigente.com
Nelson Castro raised serious objections about the Russian vaccine
The journalist and physician explained various shortcomings that Sputnik V showed in phase 1 and phase 2, which the government wants to buy.
The most important news yesterday was the possibility that the Argentine government would buy 25 million doses of the Russian Sputnik V vaccine between December of this year and January 2021, if it completes phase 3. The event generated various reactions and repercussions, between those who were happy and those who doubted. That is why the TN program "Solo Una Vuelta Más" invited Nelson Castro to bring clarity. In addition to being a journalist he is a physician and has been studying the subject extensively.
“There is an article in The Lancet, one of the medical bibles, that found the main objections. In the first place, it is a vaccine that is not known how it completed phase 1 and phase 2. There is no clear information on how the level of neutralizing antibodies was, or how those antibodies were compared with people who had been infected," he explained. Castro also warned that technically there are "important flaws" that do not allow evaluating the immunogenicity strength of the vaccine, and that according to the article, there is a very good possibility of generating antibodies during the first four weeks, but it cannot be verified what may happen passed that time.
“In the article it is said that two doses will be necessary every two years, but it is striking because nobody knows how long the immunogenicity of the vaccine will last, because until now only two or three months have passed. Saying that it will provide immunity for two years is a fallacy," said the neurologist and journalist from TN.
The third critical point, for Castro, is that what is known about phase 1 and phase 2 is that it was tested on 72 people, but it is not known when it was applied to each one, so there is no information about how long the antibody response was assessed. Another objection is that phase 3 is still missing, the most important part since it is when testing is done with a larger quantity of volunteers.
Finally, Castro explained that a member of the Russian Institute Gamaleya said that the vaccine is being made without following the legal parameters established by the Russian Ethics Commission, and after that denouncement they threw him out." It can become a great vaccine, but so far there is no reason to say that they are going to buy 25 million, because for now this vaccine only offers doubts," he closed.
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