Covid Blood Type Dna . BLOOD type was not previously a measure associated with coronavirus symptoms, but as the world has continued in its search to understand the new disease, scientists have discovered a link. There are three alleles for the ABO gene - IA, IB, and i, which produce type A, type B, and type O blood, respectively. China study shows link between blood type, coronavirus ... (Mario Rodriguez) More specifically, type O blood may be protective against the novel virus. To answer the question, will a blood transfusion change your DNA? The two main branches detect either the presence of the virus or of antibodies produced in response. BLOOD type was not previously a measure associated with coronavirus symptoms, but as the world has continued in its search to understand the new disease, scientists have discovered a link. Blood types are determined by genetics. How blood type may affect your coronavirus risk - ...