The results are reported in two studies published in the journal on October 14th Blood advances.
In one case, the researchers compared more than 473,000 people in Denmark with COVID-19 to more than 2.2 million people in the general population.
Among the COVID-19 patients, there was a lower percentage of people with blood type O and a higher percentage of people with types A, B and AB.
The results suggest that people with A, B, or AB blood may be more likely to be infected with COVID-19 than people with Type O blood. The infection rates were similar in people with blood types A, B, and AB.
The other study included 95 critically ill COVID-19 patients who were hospitalized in Canada. Patients with type A or AB blood were more likely to need mechanical ventilation, suggesting that they are more likely to have lung injuries due to COVID-19.
The study added that more patients with type A and AB blood needed dialysis because of kidney failure.
The results suggest that COVID-19 patients with A and AB blood types may have an increased risk of organ dysfunction or failure than patients with type O or B blood, according to the researchers.
They also found that while people with blood groups A and AB did not have longer hospital stays overall than people with blood groups O or B, they stayed in intensive care longer on average, which could indicate a more severe COVID-19.
“The unique part of our study is our focus on blood type severity for COVID-19. We have observed this lung and kidney damage and will want to investigate the effect of blood group and COVID-19 on other vital organs in future studies, “said study author Dr. Mypinder Sekhon, a clinical instructor in the Intensive Care Department at the University of British Columbia in Vancouver, Canada.
“Of particular importance if we continue to overcome the pandemic, we now have a wide range of survivors leaving the acute part of COVID-19. However, we need to investigate mechanisms by which we can risk stratify those with longer-term effects, ”he added in a press release.
More information
The U.S. Centers for Disease Control and Prevention has more about COVID-19.
THOSE: Blood advances, Press release from October 14, 2020
Last updated: October 14, 2020
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