With the announcement of the results of a number of final stages of coronavirus vaccines, the most recent of which was the success of the Pfizer vaccine in achieving an effectiveness of 90%, the volunteers of the new Covid-19 vaccine spoke about their experience in his experience, and explained some of the side effects that people can expect, according to the British "Daily Star" website report. one of the participants named Carrie, from Missouri, United States, registered for a trial because she felt it was her "civic duty."
According to the report, more than 43,500 people in 6 countries participated in the third phase of the trial, which was double-blind, meaning that the participants did not know whether they had received a vaccine or a placebo.
Flu-like side effects
The 45-year-old, Carrie, who believed she had received the vaccine, was given the first dose of the first vaccine in September, and the second in October, said that during her month-long rest period, she suffered from several side effects, including headache, fever and body aches. Similar to the flu shot, she also added that side effects were more severe after the second.
Carrrie said, "There are a lot of people who have had it and have suffered, it's the idea that we can do something to prevent people from suffering from this, from losing family members, and that we can get rid of it and get back to some kind of normalcy in our lives - that's the driving factor for that for me."
Severe headache
Glenn Deshields, a lobbyist from Austin, Texas, compared the side effects to a "severe hangover" and said his reaction to the shot made him confident with the vaccine.
Bryan, an engineer from Rome, Georgia, also participated in the trial but believed he got the placebo because he didn't feel any immune response.
He added, "I am optimistic now because in addition to the good news with the Pfizer vaccine, we have a new president elected and I am sure that he will not ignore the scientists, he will not underestimate the virus, and he will not do the fun of people who wear masks - so I think together they will save many lives."
Covid vaccine from Pfizer
The American pharmaceutical company "Pfizer" and the German company "BioNTech" developed a vaccine for the coronavirus in record time, and said that it found that the vaccine may be 90% effective in preventing the coronavirus, and experts praised this development, as the Director-General of the World Health Organization described it as "An unprecedented encouraging scientific innovation," and the American infectious disease expert Dr. Anthony Fauci said that its effectiveness rate is remarkable, but scientists also warn that the experiment is still ongoing, and its details have not been published yet, and there are questions that remain unanswered about the new vaccine for Pfizer.
How long does the Covid vaccination provide?
The trial found that the vaccine became effective 28 days after the initial dose, but only looked at how effective it was a week after getting the second dose.
While Pfizer may continue to follow participants if emergency clearance is granted, and when it is granted, we will not know if the vaccine conferred long-term immunity for years or not.
"What will the preventive effectiveness be over time ... will this be for a few months, like a flu vaccine? Will it be like measles or smallpox where it has lifelong immunity?" Said Gregory Poland, director of the Mayo Clinic Vaccine Research Group, according to the Wall Street Journal.
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