Muscle weakness is a symptom of a wide variety of mild to serious diseases, disorders and conditions. Muscle weakness can result from infection, trauma, malignancy, autoimmune diseases, and other abnormal processes.
Difference between O+ and O- Blood Group. Key difference: The blood groups O+ and O- are universal donors. The only difference is in the recipients to whom the blood is transfused; O+ can be transfused to any positive blood groups, whereas O- is transfused to both positive as well as negative blood groups. O+ blood group is a common blood group among most of the people.
In the ABO Grouping System, there are four types of blood: Type A, Type B, Type AB, and Type O, which are determined by the presence or absence of certain antigens on the surface of red blood cells. According to the American Red Cross, Group A â has only the A antigen on red cells (and B antibody in the plasma).f your blood cells do not stick together when anti-A and anti-B are added, you have type O blood. In back testing, known A and B cells are added to samples. If the blood clumps together only when B cells are added, the donor has type A blood.