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.
Group O have no antigens, but have anti-A and anti-B. This means that they can only receive blood from other people in group O, but they can give to any ABO group. Group A have anti-B antibodies, so they can only receive blood from people within group A or O. These two groups do not have the B-antigen. They can donate blood to people from group A or AB. Group B have anti-A antibodies, so they can only receive blood from people within group B or O. They can donate to groups B or AB.