Chickenpox spreads easily. It is most contagious on the day before the rash appears. Skin to skin contact means the virus spreads from person to person through direct contact. You can get the chickenpox if you touch a blisters or the liquid from the blisters. You can also get it when you touch the saliva of a person who has chickenpox. The virus also can spread to you through the air if you are near to someone with chicken pox who is coughing or sneezing.

A pregnant woman with chickenpox can pass it to her baby before birth. Mothers with chickenpox can also give it to their newborn babies after birth.

The only way to stop the spread of the virus from person to person is to prevent infected people from sharing the same room or house with healthy people, which isn't a practical solution. Chickenpox cannot be spread through indirect contact.