A person with blood type O may have a lower risk of contracting coronavirus, and even if infected, they are less likely to have severe symptoms, new studies have shown.
According to two studies published in Blood Advances – a peer-reviewed open access journal from the American Society of Hematology (ASH) that is only available online – there is evidence that there may be an association between blood type and susceptibility to COVID exists. 19th
The results of the two studies are given below:
Fewer coronavirus patients with blood type O.
A retrospective study of people who were tested for coronavirus showed that blood type O “can offer some protection against COVID-19 infection”.
When researchers analyzed data from the Danish health registry on more than 473,000 people tested for COVID-19 compared to a control group of over 2.2. Millions of people from the general population thought so In COVID-positive patients there were fewer with blood group O and more with blood groups A, B and AB.
This gives credibility to the fact that people with blood group A, B and AB may be at a higher risk of infection than people with blood group O.
No significant difference in the infection rate was found between blood groups A, B and AB.
Severe symptoms in people with blood types A, AB
A separate retrospective study showed that blood groups A and AB “have a higher severity of COVID-19 disease than people with blood groups O or B”.
The researchers examined data from 95 seriously ill and hospitalized COVID-19 patients in Vancouver, Canada. It was found that those with Blood groups A or AB “Rather required mechanical ventilation, which suggested that it was higher rates of lung injury of COVID-19 “.
It was also found that more patients in Groups A and AB needed dialysis for kidney failure.
What does that mean?
The two studies together show that Blood groups A and AB are particularly at risk of organ failure due to COVID-19 compared to blood groups O and B.
Also people with Type A and AB did not require a longer length of hospital stay, but did stay in the intensive care unit longer on average compared to people with Type O or B, indicating a more severe form of COVID-19.
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