Chickenpox, or varicella, is a highly contagious viral infection caused by the varicella-zoster virus (VZV). It mainly affects children but can also infect adults who haven’t been previously exposed or vaccinated. The virus is spread through respiratory droplets or direct contact with the fluid from chickenpox blisters.
The key symptom of chickenpox is the appearance of itchy red spots or blisters on the skin, which may cover the entire body. These spots start as small red bumps, develop into fluid-filled blisters, then scab over and heal. Other common symptoms include fever, fatigue, headache, and loss of appetite. Chickenpox is usually a mild illness, but complications like bacterial infections, pneumonia, or encephalitis can arise, especially in older individuals or those with weakened immune systems.
Vaccination is an effective way to prevent chickenpox. The varicella vaccine is recommended for people who haven’t had chickenpox or been vaccinated. It provides long-lasting immunity and greatly lowers the risk of infection. Vaccination is particularly important for those at higher risk of complications or for those traveling to areas where the disease is more common. By getting vaccinated, individuals protect themselves and help prevent the spread of chickenpox in their communities.