Varicella (Chickenpox) is a common disease of childhood caused by a virus that is very easily passed from person to person. It usually causes 250-500 itchy blisters, fever, and fatigue and usually lasts 4-5 days. Anyone who has not had Chickenpox may be at risk. The disease is more severe in older individuals who missed getting it when they were children and adults are 5 to 10 times more likely than children to have complications. Vaccination may be appropriate for adults and children over 12 months of age who have not had Chickenpox.

Chickenpox is a common childhood disease in the U. S.; however it is an adult disease in many tropical climates. Traveling adults should consider vaccination if they have not had the disease. People raised in tropical or subtropical areas now working in or visiting the U.S. who have not had the disease or been previously vaccinated should also consider vaccination. Proof of vaccination against Chickenpox is now required for immigration into the U.S.

Source: CDC Vaccine Information Statement (VIS): Varicella Vaccine (3/13/08) 42 U.S.C. §300aa-26