Chickenpox is a common and highly infectious disease caused by the Herpes varicella virus. After an incubation period of 14 to 21 days the illness starts with fever and generally feeling unwell.

In the 1990s, hepatitis B and varicella (chicken pox) vaccines were added, and the polio vaccine shot (IPV) replaced the oral polio vaccine. Then, in 2000, the pneumococcal conjugate vaccine (PCV ...

During the illness stage, a person shows the characteristic symptoms of infection, such as a rash in chickenpox or vomiting due to food poisoning. The decline stage occurs when the number of ...

This vaccine should not be administered to pregnant women or people who are immunocompromised. Chickenpox is caused by a virus that can be spread from person to person through the air or by contact ...