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The novel coronavirus seems to hit some people harder than others, with some people experiencing only mild symptoms and others needing hospitalisation and the use of ventilators. A new study has linked a certain blood type in people and being more vulnerable with COVID-19.
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A study has found a link between risks for experiencing a severe COVID-19 infection and a person’s blood type.
Researchers discovered that those with Type A blood may be more vulnerable.
The researchers think genetics may make six percent of people with the blood type more at risk of experiencing more severe symptoms from the deadly virus.
Patients who have this type of blood were 50 percent more likely to need oxygen support or to be put on mechanical ventilators, compared to those with other blood types.
Blood types seems to be a precursor of how susceptible one is in contracting the virus and how it affects them.
Jiao Zhao of the Southern University of Science and Technology, Shenzhen and his colleagues looked at blood types of 2,173 patients with COVID-19 in three hospitals in Wuhan, China.
The researchers looked at blood types of more than 23,000 non-COVID-19 individuals for analysis.
They found that individuals with blood types in A group were at a higher risk of contracting the disease compared with non-A-group types.
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This discovery could explain why some people who are young and otherwise relatively healthy with no underlying diseases are still becoming critically ill and even dying from the virus.
In the US, hospitals have reported that as many as 40 percent of their COVID-19 patients are young people with ages starting from their 20s.
According to the Centers for Disease Control and Prevention (CDC) about 30 percent of patients hospitalised during the week ending in May 30 were between the ages of 18 and 49.
Scientists are still unsure and are struggling to assess who among this age group are at risk of severe infections.
In another study delving into different blood types and how this could affect the virus’s symptoms, medRxiv published their results in April.
The scientists looked at 1,559 people tested for SARS-CoV-2 at New York Presbyterian hospital.
Amongst the patients, 682 tested positive and individuals with A blood types were 33 percent more likely to test positive than other blood types.
The scientists found that both O-negative and O-positive blood types were less likely to test positive than other blood groups.
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Leading health experts and researchers still do not know for sure what makes Type A blood type more susceptible to the dangers of a COVID-19 infection.
They do think it may be related to the immune system.
Researchers stated that an out-of-control immune response is responsible for inflammation which overwhelms the lungs and other organs as the body tries to fight off the deadly virus.
Those with O blood types including O-negative and O-positive had a lower risk of getting the infection compared with non-O blood types.