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Experts are returned to the need for athird dose For COVID vaccines approved for use at the US while some experts believe awakeup call It is necessary to protect against the delta variant and mitigate the efficiency of the decrease, others say that the vaccines are sufficiently protective without an additional dose. Now, Pfizer has published new data showing a third dose of its CVID vaccine "strongly" strengthens protection against the delta variant, making a case for another shot.

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According to the new Data Pfizer shared on July 28, a reminder of its vaccine could allow protection beyond the creation of two standard doses. TheThe data suggest Whether people aged 18 to 55 who get a third dose, see their antibody levels against the delta variant shots more than five times from what they were after the second dose. People aged 65 to 85 have emerged an even more significant tip in antibodies after a reminder. A third dose gave people in this age holder more than an increase of 11 times antibodies compared to what they had followed their second dose.

The researchers wrote that there existed "an estimated potential for a maximum increase of 100 times of Delta neutralization after the dose after the dose compared to the three pre-dose". Not only a callback helps protect against the delta variant, but it could also strengthen the protection against other strains, says Pfizer. According to the data, the antibody levels against the preceding dominant covidant variant and the beta variant, which has been identified for the first time in South Africa, also increases after a third dose.

The new Pfizer study comes after research that seems to suggest that two doses would not be enough to protect against the propagation of the delta variant. ThroughWall Street newspaper, a study of July 5 in Israel found that the vaccine against Pfizer isless efficient with protection against the delta variant as other strains. The data were collected during a massive hatch caused by the variant. According to the Ministry of Health of Israel, the Pfizer shot was effective 64% against COVID infection during the epidemic. Previously, the vaccine has been shown that 94% effective against infection. However, even if the Delta has spread rapidly, the Pfizer vaccine was still 94% effective in preventing a serious illness, a 3% reduction in clinical trials.

In addition, Pfizer announced on July 8 that Israel's Ministry of Health has found that the effectiveness of vaccines "in the prevention of symptomatic infections and diseases hasdeclined six months after vaccination. "Although the vaccine continues to be effective in preventing a serious illness beyond six months, the company wishes to obtain a third dose approved. The ad declared that the company would seek an authorization from a return shot of its Covid vaccine in August.

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Moderna and Johnson & Johnson also look at the recall plans for their respective vaccines. During the Health Forbes Health Summit on June 8, CEO of ModernaStéphane Bantel says that current vaccines in the United States will not suffice toprovide immunity Against long-term virus, especially new variants emerge and propagate. He believes that boosters will be needed in the near future, but he is not sure when.

"I think for the next fall, we, as a community, should rather be two months too soon earlier than two months too late. And there is no way to know exactly when people should be boosted", said Bondel. "Since we all evolve very uncertain data with a new virus, I think to be careful and stimulate early will be wise for this pandemic phase of the stimulation phase of 2022 or the end of 2021."

Johnson & Johnson is in a slightly more precarious situation because the vaccine has not been just as effective in preventing symptomatic infection than others.Angela Rasmussen, PhD, a virus expert and a research scientist with the vaccine and the infectious disease organization (Vido), have exhorted anyone who got the Johnson & Johnson vaccine at Consider getting a boost as soon as possible. "I encourage you to talk to your supplier whether it's something you should think," said Rasmussen on Twitter on June 22. "If you live in a community with low overall vaccination, I would suggest that you strongly consider doing it." She added that it might be wise to get a pfizer or modernly reminder. Another dose of Johnson & Johnson.

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