Get ready... this is a fast-paced guide to pandemics like the COVID-19 coronavirus. It looks at aspects of pandemics including how viruses infect the body, the human immune system, and the wonders of vaccination. Get tips from the experts, such as: * Don't believe everything you read online! Check the science, and don't share wacky ideas--they can be dangerous. * A face covering helps to protect people from disease. It traps some of the water droplets that carry germs. * Germs can survive for a while on surfaces, so it's important to keep your hands clean by washing them thoroughly with soap. * During a pandemic, try to avoid crowded places, such as big events or public transportation.