Immune system cells attack a fl u virus (green).


Staying Healthy Your immune system is working all the time. You know it’s working well when a cut heals or when you get over an illness. You can help your immune system


do its work. Wash your hands oſt en. Wash them aſt er playing and before eating. Eat healthy foods. Get lots of exercise. Be sure to get a good rest at night. By taking care of your body, you’ll feel better. You’ll also help your busy immune system.


WORDWISE


antibody: a protein used by the immune system to fi ght infection


bacteria: microscopic organisms made up of one cell


cell: the smallest and most basic part of a living thing


immune system: the body system that protects you against disease and infection


virus: a type of tiny germ that can cause disease


NOVEMBER-DECEMBER 2013 15


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24