Does Blood Type Predict COVID-19 Severity?

Rodiano Bonacci
Ottobre 18, 2020

Two medical studies have suggested that people with blood type O may be at lower risk of contracting the novel coronavirus.

The findings from two independent studies shed fresh light on why the virus is deadly for some - while others are not even aware they have had it.

The researchers did not find any significant difference in rate of infection between A, B, and AB types. Rates of infection were similar in these three groups. Earlier in March, a study of over 2,100 coronavirus patients in Wuhan and Shenzhen (also not peer-reviewed) found that people with Type O blood had a lower risk of infection. "So our control is population-based, giving our findings a strong foundation". Further investigations on the mechanism of the different susceptibility to COVID-19 between blood group A and O individuals are needed and regardless of your blood type, you need to follow public health recommendations.

It suggests these two blood groups have an increased risk of organ dysfunction or failure due to Covid-19. One study in particular found that blood type A or AB had a longer stay in the intensive care unit compared to those with type O blood.

This may may also signal a greater Covid-19 severity level, said the Canadian team. The first research done in Denmark on 473,654 people who were tested for Covid-19 between February and July found only 7,422 tests with blood type O came back positive.

A separate retrospective study in Canada found that people with blood groups A or AB appear to exhibit greater COVID-19 disease severity than people with blood groups O or B.

These were the details of the news Fresh Blood Test Correctly predict which COVID-19 patients will develop severe. for this day.

As the pandemic continues, the global biomedical research community is working urgently to identify coronavirus risk factors and potential therapeutic targets.

Scientists have developed a new score by which COVID-19 patients can predict how severe the disease will become. Both studies were published in the journal Blood Advances this week.

Blood donation organisation Australian Red Cross says that 40 per cent of the Australian population has O blood type making it the most common group.

Advice is still to wash your hands and follow the guidelines issued by authorities - whatever your blood type. Although blood group frequencies and susceptibility for SARS-CoV-2 can vary substantially among ethnic groups, Denmark is a relatively ethnically homogenous society with free access to health care services. Nearly half of the United Kingdom population (48%) has blood group O.

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