Antikroppar mot SARS-CoV-2 förvinner snabbt. Väldigt snabbt:
Covid-19 immunity from antibodies may last only months, UK study suggests
Studien:
Longitudinal evaluationand declineof antibody responses in SARS-CoV-2 infection
https://www.medrxiv.org/content/10.1101/2020.07.09.20148429v1.full.pdf
Verkar alltså fungera som de andra förkylningscoronavirus som finns omkring oss. Du kan bli återinfekterad ganska så snabbt om än med en mildare sjukdom. Man bör väl då vara lika smittsam dock. Speciellt som att man har visat att antagligen är man som mest smittsam i asymtomatiska fasen eller den presymtomatiska.
Han har tyvärr antagligen alldeles rätt. Eller, det ser ännu sämre ut enl. ovan. Även ett fungerande vaccin kommer inte att ge livslång immunitet.
Covid-19 immunity from antibodies may last only months, UK study suggests
/.../The paper, released on the medical server medrxiv.org on Saturday and not yet published in a peer-reviewed medical journal, suggests that antibody responses may start to decline 20 to 30 days after Covid-19 symptoms emerge. Antibodies are the proteins the body makes to fight infection.https://edition.cnn.com/2020/07/13/health/covid-immunity-antibody-response-uk-study-wellness/index.html
"We show that IgM and IgA binding responses decline after 20-30 days," the researchers from institutions in the United Kingdom wrote in the paper, which also found that the severity of Covid-19 symptoms can determine the magnitude of the antibody response.
The new study included samples collected from 65 patients with confirmed Covid-19 up to 94 days after they started showing symptoms and from 31 health care workers who had antibody tests every one to two weeks between March and June.
/.../Even though it has yet to be peer reviewed, "the importance of this study is clear and the research has been rigorously undertaken," Stephen Griffins, associate professor in the University of Leeds School of Medicine in the United Kingdom, who was not involved in the new study, said in a written statement distributed by the UK-based Science Media Centre on Monday.
"This work confirms that protective antibody responses in those infected with SARS-COV2, the coronavirus that causes COVID-19, appear to wane rapidly. Whilst longer lasting in those with more severe disease, this is still only a matter of months," Griffins said.
/.../"But this study does reinforce the message that we can't assume someone who has had COVID-19 can't get it again just because they initially became antibody positive," said Maini, who was not involved in the study. "It also means a negative antibody test now can't exclude you having had COVID-19 a few months ago. And it suggests vaccines will need to be better at inducing high levels of longer lasting antibodies than the natural infection or that doses may need to be repeated to maintain immunity."
Studien:
Longitudinal evaluationand declineof antibody responses in SARS-CoV-2 infection
https://www.medrxiv.org/content/10.1101/2020.07.09.20148429v1.full.pdf
Verkar alltså fungera som de andra förkylningscoronavirus som finns omkring oss. Du kan bli återinfekterad ganska så snabbt om än med en mildare sjukdom. Man bör väl då vara lika smittsam dock. Speciellt som att man har visat att antagligen är man som mest smittsam i asymtomatiska fasen eller den presymtomatiska.
Citat:
Tråkigt i så fall, för Fauci verkar rätt vettig. Då kan det vara sant.
Ja, det kanske får bli en mix av ofullständigt vaccin, naturliga infektioner och ett antal dödsfall om året som man får ta - under långa tider framöver. Tills mutationer och evolution hos både virus och människa har gjort sitt, så att vi kan leva med varandra...
Ja, det kanske får bli en mix av ofullständigt vaccin, naturliga infektioner och ett antal dödsfall om året som man får ta - under långa tider framöver. Tills mutationer och evolution hos både virus och människa har gjort sitt, så att vi kan leva med varandra...
Han har tyvärr antagligen alldeles rätt. Eller, det ser ännu sämre ut enl. ovan. Även ett fungerande vaccin kommer inte att ge livslång immunitet.
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Senast redigerad av arbetet 2020-07-14 kl. 08:16.
Senast redigerad av arbetet 2020-07-14 kl. 08:16.