In the US, Eggs Are Refrigerated to Help Reduce Salmonella Risks. If an egg is infected with salmonella, the bacteria will multiply more quickly if the egg is stored at room temperature instead of in the refrigerator, particularly if they're stored for longer than 21 days. This is why, in the US, public health agencies advise keeping your eggs in the fridge.
Whole blood consists of 3 types of blood cells, suspended in a liquid called plasma. Blood circulates through the arteries and veins with each of the blood cell types -- red blood cells, white blood cells and platelets -- performing different functions throughout the body.
Your blood contains many different types of cells. Red blood cells carry oxygen to all the parts of your body. Platelets stop bleeding by helping with blood clotting. White blood cells, known as leukocytes (LUKE-oh-sites), make up the immune system portion of the blood. Leukocytes are divided into three main groups: Granulocytes â cells which contain granules which contain chemicals that are used to kill bacteria and viruses.