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.
Main Difference. O Positive and O Negative are actually the types of blood groups. There are four types of blood groups A, B AB and O. O blood group is further categorized into O positive and O negative. These groups are made on the basis of blood components known as markers or antigens. Rh factor is also a marker.