Your blood type may determine how sick you get from COVID

Henrietta Strickland
October 17, 2020

While type O blood may provide small benefits during the pandemic, another study in Blood Advances finds patients with A and AB blood may see worse symptoms. The study suggests that people with blood types A, B, or AB may be more likely to be infected with Covid-19 than people with type O.

Also, people with type A and AB did not require a longer duration of hospitalisation but did remain in the intensive care unit (ICU) for longer on average, compared to people with types O or B, indicating a more severe form of COVID-19. Similar rates of infection were also present for other signs.

They said that it can not be assumed that people who are at lower risk of severe illness and death from COVID-19 are also at low risk of ongoing COVID.

The second new study found that people with Type O blood may be at a lower risk of getting he coronavirus in the first place relative to people with other blood types.

The team examined almost half a million people in the Netherlands who were tested for COVID-19 between late February and late July.

"If one is blood group A, you don't need to start panicking".

Their research showed those with blood type A or AB typically had a longer stay in the intensive care unit, with a median of 13.5 days. Their study matched these results against a control group 2.2 million people in the general population.

"Blood group O is significantly associated with reduced susceptibility to SARS-CoV-2 infection", researchers wrote, according to NBC News. People with O blood have neither antigen.

The new studies about blood type and coronavirus risk align with prior research on the topic.

Scientists have been investigating a potential link between blood type and vulnerability to Covid-19 for many months, and this latest evidence supports previous findings.

They also controlled for ethnicity, as blood group distributions differ among ethnic groups, and maintained that fewer people with blood type O tested positive for Covid-19.

A preprint study published in March this year suggested that people with blood type A have a higher risk of acquiring Covid-19 compared with non-A blood groups, while another study published in June found that blood type O seemed to be more resistant against Covid-19 infection.

Which blood types put coronavirus patients in danger?

This article was originally published by Business Insider.

Other reports by Click Lancashire

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