If it is positive, then you may have a hepatitis B infection. This test may have to be repeated to confirm whether you have a chronic infection. 2. Hepatitis B surface Antibody (HBsAb or anti-HBs) - this tests for the surface antibody that your immune system makes to fight off the virus.
Rottenstone definition, a friable stone resulting from the decomposition of a siliceous limestone, used as a powder for polishing metals. See more. Dictionary.com
Rotten Egg. A rotten egg or sulfur water odor can be caused from various water quality issues, some of which can also tarnish silverware. This type of water can yellow or leave black stains on bathroom fixtures, discolor coffee, tea, and other beverages, as well as distort the taste of foods.