Name: COVID-19 and Blood Type
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COVID-19 and Blood Type

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This article is part of Harvard Medical School’s of medicine, biomedical research, medical education and policy related to the SARS-CoV-2 pandemic and the disease COVID-19.Blood type is not associated with a severe worsening of symptoms in people who have tested positive for COVID-19, report Harvard Medical School researchers based at Massachusetts General Hospital.Their findings, published in the , dispel previous reports that suggested a correlation between certain blood types and COVID-19.The study did find, however, that symptomatic individuals with blood types B and AB who were Rh positive were more likely to test positive for COVID-19, while those with blood type O were less likely to test positive.“We showed through a multi-institutional study that there is no reason to believe being a certain ABO blood type will lead to increased disease severity, which we defined as requiring intubation or leading to death,” said senior study author , HMS assistant professor of surgery at Mass General.“This evidence should help put to rest previous reports of a possible association between blood type A and a higher risk for COVID-19 infection and mortality,” Dua said.Olfactory support cells, not neurons, are vulnerable to novel coronavirus infectionWhat can genetics reveal about the coronavirus pandemic?To stem the coronavirus crisis, Harvard Medical School scientists forge ahead on six key fronts&nbsp;The rise of COVID-19 in all corners of the world sent scientists scrambling to find characteristics that might render individuals more susceptible to the virus, as well as risk factors that might intensify its severity and progression.This has resulted in numerous theories and reports about the association between COVID-19 and blood type, which have often led to more questions than answers.HMS researchers at Mass General launched their own investigation by drawing on the massive database of the Mass General Brigham Health system’s Research Patient Data Registry.A study population of 1,289 symptomatic adult patients, who tested positive for COVID-19 and had their blood group documented, was culled from more than 7,600 symptomatic patients across five Boston-area hospitals, including Mass General and Brigham and Women’s Hospital, treated from March 6&amp; to April 16 of this year.No connectionThe statistical analysis determined the independent effect of blood type on intubation and/or death of these infected patients.The large retrospective review showed no significant connection between blood type and worsening of the disease, between blood type and the need for hospitalization, positioning requirements for patients during intubation, or any inflammatory markers.“Inflammation is a particularly important finding because prevailing scientific thought is that COVID-19 wreaks havoc on the body through systemic inflammation, which can lead to morbidity and death,” Dua said. “We found, however, that inflammation markers remained similar in infected patients regardless of their blood type.”An intriguing finding from the study was that there appeared to be a greater chance of people with blood types B and AB who were Rh positive testing positive for the virus. Even stronger evidence was assembled by the team that symptomatic people with blood type O were less likely to test positive.“These findings need to be further explored to determine if there is something inherent in these blood types that might potentially confer protection or induce risk in individuals,” Dua said.For now, though, the researchers are confident that their principle finding—that ABO blood typing should not be considered prognostic in patients who acquire COVID-19—will help debunk the kinds of clinically unfounded rumors and misinformation that can readily gain traction in the midst of a pandemic, and in some cases become part of accepted medical practice.Adapted from a Mass General .Image: Getty ImagesCOVID-19 experts discuss public and individual risk management during transition into endemicityCOVID-19 experts discuss global health equity, relaxing restrictions, evolution of the contagionScientists set sights on long game of SARS-CoV-2 evolution&nbsp;Artificial intelligence model outperforms clinicians in diagnosing pediatric ear infectionsAncient DNA illuminates 15,000 years of history at Europe-Asia crossroadsResearch in mice offers clues into how the brain processes sensory information from internal organs…Stay Up to Date© 2022 by The President and Fellows of Harvard College

This article is part of Harvard Medical School’s of medicine, biomedical research, medical education and policy related to the SARS-CoV-2 pandemic and the disease COVID-19.Blood type is not associated with a severe worsening of symptoms in people who have tested positive for COVID-19, report Harvard Medical School researchers based at Massachusetts General Hospital.Their findings, published in the , dispel previous reports that suggested a correlation between certain blood types and COVID-19.The study did find, however, that symptomatic individuals with blood types B and AB who were Rh...

COVID-19 and Blood Type

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