In people who have aplastic anemia, the body doesn't make enough red blood cells, white blood cells, and platelets. This is because the bone marrow's stem cells are damaged. (Aplastic anemia also is called bone marrow failure.) Many diseases, conditions, and factors can damage the stem cells.
The best way to safely thaw ground beef is in the refrigerator. Keeping meat cold while it is defrosting is essential to prevent growth of bacteria. Cook or refreeze it within 1 or 2 days. To defrost ground beef more rapidly, you can defrost in the microwave oven or in cold water. ...
Frozen beef should not be defrosted at room temperature. Harmful bacteria may grow rapidly under such conditions. The best method for thawing beef (or any other type of meat) is to place it in the refrigerator where it will defrost slowly and safely. A large cut of beef may require 2 days to defrost in the refrigerator. The meat should be placed on a plate or dish (to catch any juices that may drip from the thawing meat) and stored on the lowest shelf of the refrigerator.