Прививка и долгий ковид
May. 25th, 2022 07:28 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
chuka_lisК сожалению, от долгого ковида прививка защищает только на 15%.
Согласно данным самого масштабного эпидемиологического исследования- 13 млн человек.
Vaccination against SARS-CoV-2 lowers the risk of long COVID after infection by only about 15%, according to a study of more than 13 million people1. Long COVID — illness that persists for weeks or months after infection with SARS-CoV-2 — has proved difficult to study, not least because the array of symptoms makes it hard to define. Even finding out how common it is has been challenging. Some studies2,3 have suggested that it occurs in as many as 30% of people infected with the virus. But a November study4 of about 4.5 million people treated at US Department of Veterans Affairs (VA) hospitals suggests that the number is 7% overall and lower than that for those who were not hospitalized.
The authors of the latest study also compared symptoms such as brain fog and fatigue in vaccinated and unvaccinated people for up to six months after they tested positive for SARS-CoV-2. The team found no difference in type or severity of symptoms between those who had been vaccinated and those who had not. “Those same fingerprints we see in people who have breakthrough infections,”
The limited protection provided by vaccines means that withdrawing measures such as mask mandates and social-distancing restrictions might be putting more people at risk — particularly those with compromised immune systems. “We’re literally solely reliant, now almost exclusively, on the vaccine to protect us and to protect the public,” says Al-Aly. “Now we’re saying it’s only going to protect you 15%. You remain vulnerable, and extraordinarily so.”
“Generally speaking, this is horrifying,” says David Putrino, a physical therapist at Mount Sinai Health System in New York City who studies long COVID. He praises the study, which was difficult to perform because of the amount and quality of data, but adds that it is limited because it does not break the data down by key factors, such as the participants’ medical history. “These are very important questions we need answers to,” Putrino says. “We don’t have any really well constructed studies just yet.”
The post-acute sequelae of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection—also referred to as Long COVID—have been described, but whether breakthrough SARS-CoV-2 infection (BTI) in vaccinated people results in post-acute sequelae is not clear. In this study, we used the US Department of Veterans Affairs national healthcare databases to build a cohort of 33,940 individuals with BTI and several controls of people without evidence of SARS-CoV-2 infection, including contemporary (n = 4,983,491), historical (n = 5,785,273) and vaccinated (n = 2,566,369) controls. At 6 months after infection, we show that, beyond the first 30 days of illness, compared to contemporary controls, people with BTI exhibited a higher risk of death (hazard ratio (HR) = 1.75, 95% confidence interval (CI): 1.59, 1.93) and incident post-acute sequelae (HR = 1.50, 95% CI: 1.46, 1.54), including cardiovascular, coagulation and hematologic, gastrointestinal, kidney, mental health, metabolic, musculoskeletal and neurologic disorders. The results were consistent in comparisons versus the historical and vaccinated controls. Compared to people with SARS-CoV-2 infection who were not previously vaccinated (n = 113,474), people with BTI exhibited lower risks of death (HR = 0.66, 95% CI: 0.58, 0.74) and incident post-acute sequelae (HR = 0.85, 95% CI: 0.82, 0.89). Altogether, the findings suggest that vaccination before infection confers only partial protection in the post-acute phase of the disease; hence, reliance on it as a sole mitigation strategy may not optimally reduce long-term health consequences of SARS-CoV-2 infection. The findings emphasize the need for continued optimization of strategies for primary prevention of BTI and will guide development of post-acute care pathways for people with BTI.
Согласно данным самого масштабного эпидемиологического исследования- 13 млн человек.
Vaccination against SARS-CoV-2 lowers the risk of long COVID after infection by only about 15%, according to a study of more than 13 million people1. Long COVID — illness that persists for weeks or months after infection with SARS-CoV-2 — has proved difficult to study, not least because the array of symptoms makes it hard to define. Even finding out how common it is has been challenging. Some studies2,3 have suggested that it occurs in as many as 30% of people infected with the virus. But a November study4 of about 4.5 million people treated at US Department of Veterans Affairs (VA) hospitals suggests that the number is 7% overall and lower than that for those who were not hospitalized.
The authors of the latest study also compared symptoms such as brain fog and fatigue in vaccinated and unvaccinated people for up to six months after they tested positive for SARS-CoV-2. The team found no difference in type or severity of symptoms between those who had been vaccinated and those who had not. “Those same fingerprints we see in people who have breakthrough infections,”
The limited protection provided by vaccines means that withdrawing measures such as mask mandates and social-distancing restrictions might be putting more people at risk — particularly those with compromised immune systems. “We’re literally solely reliant, now almost exclusively, on the vaccine to protect us and to protect the public,” says Al-Aly. “Now we’re saying it’s only going to protect you 15%. You remain vulnerable, and extraordinarily so.”
“Generally speaking, this is horrifying,” says David Putrino, a physical therapist at Mount Sinai Health System in New York City who studies long COVID. He praises the study, which was difficult to perform because of the amount and quality of data, but adds that it is limited because it does not break the data down by key factors, such as the participants’ medical history. “These are very important questions we need answers to,” Putrino says. “We don’t have any really well constructed studies just yet.”
The post-acute sequelae of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection—also referred to as Long COVID—have been described, but whether breakthrough SARS-CoV-2 infection (BTI) in vaccinated people results in post-acute sequelae is not clear. In this study, we used the US Department of Veterans Affairs national healthcare databases to build a cohort of 33,940 individuals with BTI and several controls of people without evidence of SARS-CoV-2 infection, including contemporary (n = 4,983,491), historical (n = 5,785,273) and vaccinated (n = 2,566,369) controls. At 6 months after infection, we show that, beyond the first 30 days of illness, compared to contemporary controls, people with BTI exhibited a higher risk of death (hazard ratio (HR) = 1.75, 95% confidence interval (CI): 1.59, 1.93) and incident post-acute sequelae (HR = 1.50, 95% CI: 1.46, 1.54), including cardiovascular, coagulation and hematologic, gastrointestinal, kidney, mental health, metabolic, musculoskeletal and neurologic disorders. The results were consistent in comparisons versus the historical and vaccinated controls. Compared to people with SARS-CoV-2 infection who were not previously vaccinated (n = 113,474), people with BTI exhibited lower risks of death (HR = 0.66, 95% CI: 0.58, 0.74) and incident post-acute sequelae (HR = 0.85, 95% CI: 0.82, 0.89). Altogether, the findings suggest that vaccination before infection confers only partial protection in the post-acute phase of the disease; hence, reliance on it as a sole mitigation strategy may not optimally reduce long-term health consequences of SARS-CoV-2 infection. The findings emphasize the need for continued optimization of strategies for primary prevention of BTI and will guide development of post-acute care pathways for people with BTI.
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