Shingles - causes, symptoms, treatment, vaccination. Shingles is a viral infection, the first symptom of which is usually a tingling, sharp, burning pain under the skin, followed after 1-3 days by a red rash and blisters. Shingles is caused by the same virus as chickenpox (varicella zoster).
Rating: Be the first to rate this item. O.F.A.C. stands for the Office of Foreign Assets Control and is a part of the U. S. Department of the Treasury. The following definition was found on the OFAC web site:
The function `f` is continuous at the `x`-value `c` if. ` 1 lim_(x-->c) f(x) = L` where `L` is a real number. (so `L` can't be `oo` or `-oo`), and. ` 2 f(c) = L`.