In the USA, there are 8,090,241 cases, and there have been 219,047 deaths - while 3,197,539 people have recovered, according to the global COVID-19 Dashboard by the Center for Systems Science and Engineering at Johns Hopkins University. Patients with blood types A and AB did not have longer hospital stays than those with types O or B, but they did experience longer intensive care unit stays, which may signal greater COVID-19 severity.
A, B, and AB individuals are also at increased risk of thrombosis and cardiovascular disease, which is a major comorbidity in comorbid Covid-19 patients and may be mediated by the glycosylation of proteins involved in hemostasis are. The only data obtained is that people with the first blood group ("O") are less likely to get infected, and those who do get sick have a milder illness. A study published in July looking at patients in five major hospitals in the state of MA found that people with blood type O were less likely to test positive for COVID-19 than those with other blood types. For such patients, the risk is higher that the disease will be hard, with complications. This study had said that individuals with O blood type were around 9-18 per cent less likely to test positive for COVID-19 than individuals with other blood types.
Both new observations came out Wednesday in the journal Blood Advances.
While 84 percent of patients with blood groups A or AB required mechanical ventilation in SARS-CoV-2 infection, that level was 61 percent for patients with blood types O or B, according to the research.
Your blood group depends on the presence or absence of proteins called A and B antigens on the surface of RBCs, a genetic trait inherited from your parents.
In two of such researches, the scientists have found out that a person's blood type can play a very important role in one's vulnerability towards the novel coronavirus.
There was a slight, but statistically significant, difference in blood group distribution between the SARS-CoV-2- individuals and the reference population. Which shares its 80% genetic code with the new coronavirus. Researchers observed lung and kidney damage, and in future studies, they want to tease out the effect of blood group and COVID-19 on other vital organs. "And if you're blood group O, you're not free to go to the pubs and bars".