- Two new studies published this week suggest that the risk of being infected with the novel coronavirus can be attributed to blood type.
- One study showed that those with Type O blood were more likely to catch COVID-19, while others showed that those with Type O blood did not get sick.
- More research needs to be done, and although blood type may affect the likelihood of COVID-19 infection and serious illness, it is not enough to change anyone’s behavior.
Much has been learned about the novel coronavirus since the pandemic began seven months ago, but there are countless mysteries left unresolved. Dozens of studies have been published on a weekly basis with living theories about how contagious the virus is, who is most likely to be infected, how dangerous the virus is for certain types of people, and etc. and so on. Earlier, many of those studies indicated that a person̵7;s blood type may affect the severity of the disease, and this week, two more studies supported that expression.
As CNN reports, two studies published Wednesday suggest that people with Type O blood are more likely to catch COVID-19, and may also have a lower chance of becoming seriously ill if they become infected. .
The first study, from Denmark, examined data from 473,654 tested for COVID-19 from February to July. 7,422 of those tests returned positive, and of the individuals, 38% had Type O blood and 44% had Type A blood. In a larger data sample of more than 2.2 million people in Denmark who have not been tested for the virus, 42% have Type O blood and 42% have Type A blood. The results seem to indicate that despite individuals with Type O and Type A blood being equally divided in the general population, Type O is less susceptible to the virus.
Another study, which looked at 95 COVID-19 patients hospitalized in Canada, came to a similar conclusion. The researchers found that of the 95 sick patients, 84% with Type A or Type AB blood ended up in need of mechanical ventilation, compared with 61% of those with Type O or Type B blood.
“As a clinician … it was at the back of my mind when I looked at patients and decided I was,” said Dr. Mypinder S. Sekhon, an intensive care physician at Vancouver General Hospital and author of the study in Canada. CNN. “But in terms of a defining marker, we need repeated findings in many jurisdictions that reflect the same thing. I don’t think it will be mixed with other risk factors such as age and both morally and so on. If one is a blood group A, you do not have to start panicking. And if you are a blood group O, you are not free to go to pubs and bars. “
The two important takeaways here are still having more data needed before reaching any definitive conclusion from this research, and even the blood type of ABO plays a role in the ability of the virus to infect anyone or cause of severe damage to them, it is still not enough of a difference to affect pandemia best practices for anyone.