November 30, 2021

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The immunized or the recovered?..a study that shows the most vulnerable to infection with “Delta”

A research paper revealed that those recovering from a previous infection with the Covid-19 virus are less likely to be infected with the delta mutant than those who received two doses of the Pfizer-Biontech vaccine.

The research paper prepared by researchers in Israel contrasts with previous studies, which showed that vaccinations provided better protection from previous infections, although those studies were not on the delta mutant.

These results are good news for people who have successfully fought off COVID-19, but they do show the challenge of relying exclusively on vaccinations to survive the pandemic.

People given two doses of the Pfizer-BioNTech vaccine were six times more likely to develop a delta infection, and seven times more likely to develop symptoms of the disease than those who recovered from the virus.

The researchers said: “This analysis showed that natural immunity provides stronger, longer-lasting protection against infection, disease symptoms, and hospitalization due to the delta variant,” according to what was reported by “Bloomberg.”

The analysis showed that the protection gained from previous infection also diminished over time, and the risk of a delta penetration case, or what is known as “breakthrough” infection, was 13 times higher than the risk of a second infection after the original disease occurred during January or February 2021.

It also appears that giving a single injection of the vaccine to those who have been infected previously enhances their protection, but the long-term benefit of the booster vaccination dose, which is just beginning to be given in Israel, is not yet known.