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 word confectioner means someone who makes candies and other sweets, thus confectioners' sugar is widely used in candy making and baking. Confectioners' sugar is not the same as superfine sugar or bakers' sugar. These products are finer than granulated sugar, but not as fine as confectioners' sugar.