translated from Spanish: First dose Covid Pfizer vaccine effective after two weeks

Israel.- In the world there is a lot of news about the cases of people who have been infected with Covid-19 after receiving the vaccine against the virus, which is why many people question the effectiveness of them, however, a study conducted by Sheba Hospital in Israel may have the answer to this apparent great failure of medicine. For much of 2020 after SARS-COV-2 became a global pandemic, scientists from all latitudes began working on an antigen capable of attacking the contagious virus; back then and even these days, the biggest concern was knowing the implications of developing a biological in less than a year when it is well known that vaccines take on average 10 years for their manufacture.
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Read more: Russia registers its third anticovid vaccine, coviVacProbably the biggest concern was how effective and how much it would protect the injected antigen. Scientific concern became collective concern when vaccination began and cases of people who contracted the viral agent after being injected began to emerge, does that mean that the protection given by biologicals is very low? Not necessarily.

Research by the Israeli hospital Sheba, published last Friday, February 19, published in The Lancet magazine, concluded that the first dose of the vaccine developed by pharmaceutical company Pfizer in conjunction with BioNTech reduced virus infections by up to 75% within two weeks of being delivered. The study had as a population of analysis just over 7,000 workers from the hospital center where it was performed, being one of the first to investigate the effectiveness of the first dose of the vaccine of the US pharmaceutical company. These results showed that the antigen has low efficacy during the first two weeks after being applied, but that, on the contrary, it shows high efficacy after this first period. In addition, an 85% decline in symptoms of SARS-COV-2 was also observed. One of the conclusions reached by the research was that a person’s complete immunization scheme, i.e. the application of the second dose, could wait, especially in countries where vaccine desalination is available, prioritizing more people being vaccinated with a first quantity. Read more: In the world the rich are vaccinated against Covid-19, the poor hope However, despite how encouraging this may be, the researchers stated that before recommending the single-dose scheme in nations that require it, more studies should first be done in this regard, which should aim to track and determine how long the effect of a single dose lasts.

Margarita “The Goddess of Cumbia” receives Covid-19 vaccine



Original source in Spanish

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