Chickenpox is a highly contagious viral infection caused by the varicella-zoster virus (VZV). It primarily affects children but can also occur in adults who have not been previously exposed to the virus or vaccinated against it. The incubation period is usually 10-21 days after exposure. Chickenpox is usually a mild illness in healthy children but can cause serious complications in certain groups, such as newborns, pregnant women, adults, and individuals with weakened immune systems. Complications can include bacterial infections of the skin, pneumonia, & encephalitis. Vaccination is the most effective way to prevent chickenpox and its complications. It's typically given in two doses, with the first dose administered at 12-15 months of age and the second dose at 4-6 years of age. Dr. Thigalvathy, Consultant - Microbiologist, explains the symptoms, causes, prevention & treatment methods for Chicken Pox.