Four new cases of Covid-19 in NZ today, all in isolation

HEALTH Coronavirus

In a second study also published on Wednesday, Canadian scientists examined 95 COVID-19 patients in Vancouver between February and April.

Between the blood types A, B and AB, no significant difference in rates of infection was found.

Researchers of this study found that Covid-19 patients with blood groups A and AB had an increased risk of severe clinical outcomes, compared to patients with blood groups O or B. Of those, only 38.4% had blood type O - despite people with that blood type making up 41.7% of the roughly 2.2 million untested people in the population.

Most of the 36 hospitalised cases are stable or improving, while none is in critical condition in the intensive care unit. Meanwhile, people with blood group O or B, experienced a visit in the ICU with a median of about nine days.

They wrote that patients with blood groups A or AB were more likely to require mechanical ventilation (34, or 84%) versus those with blood group O or B (35, or 61%), which means that their risk of lung injury from Covid-19 was greater. These patients were more prone to organ dysfunction or failure due to coronavirus.

In general, your blood type depends on the presence or absence of proteins called A and B antigens on the surface of red blood cells - a genetic trait inherited from your parents. It's the most common blood type: About 48 percent of Americans have Type O blood, according to the Oklahoma Blood Institute.

A retrospective study of individuals tested for coronavirus showed that blood type O "may offer some protection against COVID-19 infection".

However, blood types A and AB are at most risk and vulnerable to the infection.

Previous studies have indicated similar results in patients with blood type O.

A growing body of evidence suggests those who have blood type O may be less likely to contract coronavirus and typically experience less severe symptoms when they do come down with the illness.

"I don't think this supersedes other risk factors of severity like age and comorbidities and so forth", he told CNN, adding, "if one is blood group A, you don't need to start panicking".

This article was originally published by Business Insider.

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