Parents, who have concerns about vaccinating their children, are turning to a new way to expose their kids to the chickenpox virus.

They're buying lollipops licked by children with chickenpox for up to $50 a 'pop'.

The lollipops have been shipped overnight all over the country.

An infectious disease doctor says it is unlikely that the pox virus can be spread through an infected lollipop.

Parents are being reminded that it is federal crime to send diseases or viruses across state lines.

Dr. Wendy Sue Swanson of Seattle Children's Hospital said, "The idea that we would want to infect our children ... is mindblowing, dangerous. The idea that a child who has never had the vaccine and never had the illness could lick a lollipop and get chicken pox is erroneous, irresponsible and senseless to me."

In addition to being dangerous, she said, sending a virus through the mail is a federal crime.