This title examines viruses, bacteria, fungi and protozoa, how they can infect the body, the body's immune response, and how science works for cures with vaccines, antivirals, antifungals, and antibiotics. A list of healthy habits is included to help readers combat disease. Aligned to Common Core Standards and correlated to state standards. Big Buddy Books is an imprint of Abdo Publishing, a division of ABDO.