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If two years of life under the pandemic have proven something, it is because Covid-19 turned out to be an elusive enemy without shortage of surprises. But even asCase counts have increased and fallen As the virus has taken slightly new forms that affect its transmissibility, very effective vaccines have contributed to bringingHospitalization and mortality rate Up to levels much lower than during the first days of the virus. This was true even for the Omicron variant, which sent the national rate of infection to its highest points everInfections to increase once again.

Read this then:More than 50? Do not get a second booster if you did this, CDC warns.

Fortunately, research has shown that the deployment of vaccines and their following boosters have helpedProtect the public of COVID-19,,USA today reports. Centers for Disease Control and Prevention (CDC) data until March 19 of this year revealed that unvaccinated Americans over five yearsten times more likely to die of the virus than those who received the two initial plans. And these 12 years or over have proven 20 times more likely to succumb to the virus if they had not been vaccinated.

However, time has always proven to be an important challenge in the fight against Covid-19. New very contagious variants have tested the effectiveness of vaccines to prevent infection while declining the immunity of original shots has also led to the need for additional doses. But according to a new study published on May 13Jama Network Open, some boosters can only offerA brief protective window from the omicron variant with rapid spread,Forbes reports.

The latest research considered 128 patients who had at least receivedThe two initial plans of the pfizer vaccine And some who had received the third dose of recall. Blood tests have been taken from everyone to examine the levels of antibodies, which can help measure a person against infection of the virus or serious disease. The results revealed that the "neutralizing" specific antibodies levels that protect against the Omicron variant have dropped "quickly" compared to those effective against the Delta variant and the original strain, going from 76% four weeks after the second Initial dose at 53% from eight to ten weeks later and 19% at the brand from 12 to 14 weeks.

The results also showed that a booster has shaved the levels of antibodies, increasing them almost 21 times three weeks after their administration and 8 times at the brand of four weeks compared to the second initial dose,Forbes reports. But even if most people have shown a significant immune response for eight weeks, the results also found that protection quickly dropped after the third dose, showing that the levels of specific antibodies have dropped 5, 4 times between the window from three to eight weeks after the shooting. Compared, the levels of antibodies for the original COVVI-19 virus and the DELTA variant dropped by 4.9 times and 5.6 times over the same period, respectively.

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Researchers conclude that their results suggest that older or immunocompromised people will probably need more boosters to strengthen their protection against the virus in the future. However, the results also highlighted the way in which COVVI-19 boosters will be used in the general public beyond the third dose and how effective it would be to redminate them. While neutralizing antibodies measured in the study represent part of the immune defense mounted by the body, other elements such as T cells could provideLong -term protection against serious diseases, which is essentially the real function of a vaccine,Forbes reports.

However, some other recent research supports using additional photos toprotect from virus. The preliminary data of a study of just over 2,600 patients hospitalized with a severe covid in 14 medical centers in Israel during Omicron overvoltage show that those givenA fourth blow According to Globaldata Healthcare, had a chance of 49% lower than those who had received their third dose of recall before their cocvid diagnosis.

"Although the design of the study has made it difficult to determine the reduction in the additional recall dose reduces the severity of COVID-19, it suggests that a fourth dose can improve clinical results and then have the potential to reduce The number of hospitalizations and deaths ", the" experts have written. "As such, an additional cycle of recall vaccinations can be an appropriate response to maintain current trends that have triggered end statements to the phase COVID-19 pandemic. "AE0FCC31AE342FD3A1346EBB1F342FCB

Currently, the CDC recommends that any person aged 50 or over and those who are moderately immunocompromisedlyeligible for a fourth blow Four months after receiving their first dose of recall. Some US officials have warned that additional blows could helpAvoid another wave In cases where some plan to arrive this fall.

“We must be prepared. And we must be prepared with vaccinations, with boosters ... that's what I mean when we say that weI can't leave our guard. Even if, at the moment, we are not in the so-called fulminant phase of the epidemic, we are still in the middle of the pandemic, "said the chief advisor of the White House Anthony Fauci, MD, during 'An interview of May 12 with the newspaperPeak hour. "There are so many things that we can and have to do to make sure it doesn't happen."

Read this then:Dr Fauci warns that people vaccinated "must realize" this now.