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us apple developer accounts for sale(buyappleacc.com):Can the vaccinated develop long Covid after a breakthrough infection?

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CALIFORNIA — While some breakthrough cases among those who are fully vaccinated against Covid-19 are inevitable, they are unlikely to result in hospitalisation or death. But one important question about breakthrough infection that remains unanswered is: Can the vaccinated develop so-called long Covid?

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Long Covid refers to a set of symptoms — such as severe fatigue, brain fog, headache, muscle pain and sleep problems — that can persist for weeks or months after the active infection has ended.

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The syndrome is poorly understood, but studies suggest that between 10 and 30 per cent of adults who catch the virus may experience long Covid, including those who experienced only mild illness or no symptoms at all.

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But the vast majority of data collected about long Covid has been in the unvaccinated population. The risk of developing long Covid for the fully vaccinated who get infected after vaccination has not been studied.

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While preliminary research suggests that it is, in fact, possible for a breakthrough case to lead to symptoms that can persist for weeks to months, there are still more questions than answers. What per cent of breakthrough cases result in lingering symptoms? How many of those people recover? Are the persistent symptoms after breakthrough infection as severe as those that occur in the unvaccinated?

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“I just don’t think there is enough data,” said Dr Zijian Chen, medical director at the Center for Post-COVID Care at Mount Sinai Health System in New York.

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“It’s too early to tell. The population of people getting sick post vaccination isn’t that high right now, and there’s no good tracking mechanism for these patients.”

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One recent study of Israeli health care workers published in the New England Journal of Medicine offers a glimpse of the risk of long Covid after a breakthrough infection. Among 1,497 fully vaccinated health care workers, 39 of them — about 2.6 per cent — developed breakthrough infections. (All of the workers were believed to be infected after contact with an unvaccinated person, and the study was conducted before the delta variant became dominant.)

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While most of the breakthrough cases were mild or asymptomatic, seven out of 36 workers tracked at six weeks (19 per cent) still had persistent symptoms. These long Covid symptoms included a mix of prolonged loss of smell, persistent cough, fatigue, weakness, laboured breathing or muscle pain.

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But the study’s authors caution against drawing too many conclusions from the research. The sample size — just seven patients — is small. And the research was designed to study antibody levels in the infected, said Dr Gili Regev-Yochay, director of the infectious disease epidemiology unit at Sheba Medical Center. It was not designed to study the risk of long Covid after a breakthrough infection.

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“It was not the scope of this paper,” Dr Regev-Yochay said. “I don’t think we have an answer to that.”

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