Based on the research conducted and the data collected, the aim is to make a list of the groups most at risk but also most likely to develop a particular disease.
When it comes to infection with the new coronavirus, there are several risk groups – from people with impaired immune function to the elderly. However, there is still not much information available to anyone with a greater predisposition to develop COVID-19. According to statistics, men and the elderly are officially included in the virus-sensitive groups.
In an effort to expand knowledge about groups with a greater predisposition to infection, Chinese scientists have released a new study linking two seemingly unrelated parameters – blood groups and coronavirus susceptibility. The study was conducted on 2173 patients with developed COVID-19 at three hospitals in Wuhan and Shenzhen.
Association with blood type
There are four different blood types: A, B, AB, and O. Scientists have put in a ratio the average blood counts in the healthy population and the blood groups in patients with the new coronavirus. They found that coronavirus patients had a much higher blood group A than healthy people, while the situation with blood group O was reversed – the proportion of blood group O patients with COVID-19 was far less than the proportion of healthy blood group O people From the results, scientists have suggested that blood groups are a potential susceptibility marker for coronavirus disease, where people with blood type A are more likely to develop an infection than people whose blood type is O.
Similar research was conducted during the 2003 SARS-CoV epidemic, when there was also an increased predisposition of blood type A people to develop the disease. These studies have also raised the theory of the cause of the unexpected results – it is thought that anti-A antibodies (which have all but one of the blood type A individuals) make it difficult to bind the virus to the cell, and therefore to develop the infection.