Before the US began vaccinating kids against chickenpox, well-intentioned parents of the '70's and '80s exposed children to the virus through so-called “chickenpox parties.” There’s been a resurgence of pox parties in recent years as some parents opt for the “natural exposure,” rather than having a child vaccinated against the viral infection. Pediatrician Jose Tavarez, MD, weighs in on whether pox parties are a safe alternative to the chickenpox vaccine.