covid19med

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A reinfection red flag
A reinfection red flag
Why a new report is so troubling
·erictopol.substack.com·
A reinfection red flag
Vincent Rajkumar on Twitter
Vincent Rajkumar on Twitter
Are vaccines needed if you already had COVID? I wrote a thread a few months ago arguing: Yes. They are. This study just out in @NEJM provides a lot of important data https://t.co/v0GuQba3RZ1) Vaccines do provide higher and longer protection than you get from infection alone pic.twitter.com/7G48pJ9GrN— Vincent Rajkumar (@VincentRK) February 17, 2022
·twitter.com·
Vincent Rajkumar on Twitter
Long covid—mechanisms, risk factors, and management
Long covid—mechanisms, risk factors, and management
Since its emergence in Wuhan, China, covid-19 has spread and had a profound effect on the lives and health of people around the globe. As of 4 July 2021, more than 183 million confirmed cases of covid-19 had been recorded worldwide, and 3.97 million deaths. Recent evidence has shown that a range of persistent symptoms can remain long after the acute SARS-CoV-2 infection, and this condition is now coined long covid by recognized research institutes. Studies have shown that long covid can affect the whole spectrum of people with covid-19, from those with very mild acute disease to the most severe forms. Like acute covid-19, long covid can involve multiple organs and can affect many systems including, but not limited to, the respiratory, cardiovascular, neurological, gastrointestinal, and musculoskeletal systems. The symptoms of long covid include fatigue, dyspnea, cardiac abnormalities, cognitive impairment, sleep disturbances, symptoms of post-traumatic stress disorder, muscle pain, concentration problems, and headache. This review summarizes studies of the long term effects of covid-19 in hospitalized and non-hospitalized patients and describes the persistent symptoms they endure. Risk factors for acute covid-19 and long covid and possible therapeutic options are also discussed.
·bmj.com·
Long covid—mechanisms, risk factors, and management
Pfizer-BioNTech vaccine recipients have lower antibody levels targeting the Delta variant first discovered in India
Pfizer-BioNTech vaccine recipients have lower antibody levels targeting the Delta variant first discovered in India
Levels of antibodies in the blood of vaccinated people that are able to recognise and fight the new SARS-CoV-2 Delta variant first discovered in India (B.1.617.2) are on average lower than those against previously circulating variants in the UK, according to new laboratory data from the Crick and the National Institute for Health Research (NIHR) UCLH Biomedical Research Centre
·crick.ac.uk·
Pfizer-BioNTech vaccine recipients have lower antibody levels targeting the Delta variant first discovered in India
Neutralising antibody activity against SARS-CoV-2 VOCs B.1.617.2 and B.1.351 by BNT162b2 vaccination
Neutralising antibody activity against SARS-CoV-2 VOCs B.1.617.2 and B.1.351 by BNT162b2 vaccination
The SARS-CoV-2 B.1.617.2 Variant of Concern (VOC), first detected in India, is now dominant in the UK, having rapidly1 displaced the B.1.1.7 strain2 that emerged in the UK with the second COVID-19 wave in late 2020. The efficacy of currently licensed COVID-19 vaccines against B.1.617.2 is unknown; although it possesses 12 mutations in its spike protein relative to the wildtype SARS-CoV-2 first detected in Wuhan, China, in December, 2019, B.1.617.2 lacks mutations at amino acid positions 501 or 484 in its ACE2 receptor-binding domain, commonly associated with VOCs (appendix p 2) or escape from neutralising antibodies (NAbs).
·thelancet.com·
Neutralising antibody activity against SARS-CoV-2 VOCs B.1.617.2 and B.1.351 by BNT162b2 vaccination
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·thelancet.com·
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Karl Lauterbach (@Karl_Lauterbach) / Twitter
Karl Lauterbach (@Karl_Lauterbach) / Twitter
Post-hospitalization long covid in the UKQuality of life is poor:50% have serious long covid symptoms at 7 months after release.25% are disabledWorse in womenhttps://t.co/MP88GPdARF pic.twitter.com/eFBJhLJ37n— Yaneer Bar-Yam (@yaneerbaryam) March 14, 2021
·twitter.com·
Karl Lauterbach (@Karl_Lauterbach) / Twitter
Three-quarters attack rate of SARS-CoV-2 in the Brazilian Amazon during a largely unmitigated epidemic | Science
Three-quarters attack rate of SARS-CoV-2 in the Brazilian Amazon during a largely unmitigated epidemic | Science
SARS-CoV-2 spread rapidly in the Brazilian Amazon and the attack rate there is an estimate of the final size of a largely unmitigated epidemic. We use a convenience sample of blood donors to show that by June, one month after the epidemic peak in Manaus, capital of Amazonas state, 44% of the population had detectable IgG antibodies. Correcting for cases without a detectable antibody response and antibody waning, we estimate a 66% attack rate in June, rising to 76% in October. This is higher than in São Paulo, in southeastern Brazil, where the estimated attack rate in October is 29%. These r...
·science.sciencemag.org·
Three-quarters attack rate of SARS-CoV-2 in the Brazilian Amazon during a largely unmitigated epidemic | Science
COVID-19 and Excess All-Cause Mortality in the US and 18 Comparison Countries
COVID-19 and Excess All-Cause Mortality in the US and 18 Comparison Countries
This Viewpoint compares the COVID-19 per capita overall and excess mortality rates in the US vs that of 18 OECD countries and the timing of any increases in excess mortality between February and September 2020.
·jamanetwork.com·
COVID-19 and Excess All-Cause Mortality in the US and 18 Comparison Countries
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·thelancet.com·
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·thelancet.com·
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Genomic Evidence for a Case of Reinfection with SARS-CoV-2 by Richard Tillett, Joel Sevinsky, Paul Hartley, Heather Kerwin, Natalie Crawford, Andrew Gorzalski, Christopher Laverdure, Subhash Verma, Cyprian Rossetto, David Jackson, Megan Farrell, Stephanie Van Hooser, Mark Pandori :: SSRN
Genomic Evidence for a Case of Reinfection with SARS-CoV-2 by Richard Tillett, Joel Sevinsky, Paul Hartley, Heather Kerwin, Natalie Crawford, Andrew Gorzalski, Christopher Laverdure, Subhash Verma, Cyprian Rossetto, David Jackson, Megan Farrell, Stephanie Van Hooser, Mark Pandori :: SSRN
The degree of protective immunity conferred by infection with SARS-CoV-2 is currently unknown. As such, the possibility of reinfection with this virus is not w
·papers.ssrn.com·
Genomic Evidence for a Case of Reinfection with SARS-CoV-2 by Richard Tillett, Joel Sevinsky, Paul Hartley, Heather Kerwin, Natalie Crawford, Andrew Gorzalski, Christopher Laverdure, Subhash Verma, Cyprian Rossetto, David Jackson, Megan Farrell, Stephanie Van Hooser, Mark Pandori :: SSRN
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·thelancet.com·
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COVID-19 Case-Fatality Rate and Characteristics of Patients Dying in Italy
COVID-19 Case-Fatality Rate and Characteristics of Patients Dying in Italy
This Viewpoint from physicians with the Italian National Institute of Health confirms a higher case-fatality rate from coronavirus disease 2019 (COVID-19) in Italy compared with China and explains possible reasons, including age, cause of death definitions, and testing strategy.
·jamanetwork.com·
COVID-19 Case-Fatality Rate and Characteristics of Patients Dying in Italy