The scientific method is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. To be termed scientific, a method of inquiry is commonly based on empirical or measurable evidence subject to specific principles of reasoning.
Chickenpox (varicella) is a contagious illness that causes an itchy rash and red spots or blisters (pox) all over the body. Chickenpox can cause problems for pregnant women, newborns, teens and adults, and people who have immune system problems that make it hard for the body to fight infection.
About Chickenpox. Chickenpox used to be a common childhood illness in the United States, especially in kids under age 12. It's much rarer now, thanks to the varicella vaccine that's given when kids are between 12 and 15 months old, followed by a booster shot at 4 to 6 years of age. Caused by the varicella-zoster virus (VZV), chickenpox is very contagious.