Leg pain is also frequently a sign of injury, such as the following: Muscle strain is a common injury that happens when the muscle fibers tear as a result of overstretching. It often occurs in the larger muscles, such as the hamstrings, calves, or quadriceps.
medical Definition of superinfection : a second infection superimposed on an earlier one especially by a different microbial agent of exogenous or endogenous origin that is resistant to the treatment used against the first infection
the state of being redundant. 2. superfluous repetition or overlapping, especially of words. 3. a redundant thing, part, or amount; superfluity. 4. the provision of additional or duplicate systems, equipment, etc., that function in case an operating part or system fails, as in a spacecraft. 5. Linguistics.